Hi
Now calcula23 use constants pi and e
and it work with scientific format;
It also solves equations ax^2+bx+c=c0
where a,b,c are real constants in scientific format or not.
It also gives the complex solutions if it is the case.
If you want pi, type pi; if you want e, type e;
I dont know any bug.
If you know, please reply here and tell me
Good luck ! :wink
Thanks
EDIT: this calcula23 has some bugs. Please try the last calcula30
Seem math mistakes there not much, but is :naughty:
So 80-bit REAL format giving exactness more then 17 digital digits and 4096 exponent size, I seen only 15 and not seen exponent :
e^22 = 3584912846.131592 - I got - e^22 = 3584912846.131591
e^100 = unxpected value - I got - e^100 = 2.688117141816135E43
It seems to be a printing problem, as e^100 yields various one-character outputs (@, d, ...).
Adamanteus
Thank you for help me :wink
The same for jj ! :thumbu
Try calcula24 now
jj,
Quote
It seems to be a printing problem
Not only, but a converting problem also
That is the problem of calcula23
Now we have
calcula24.
The problem is solved
Good luck !
Thanks
Very exact program, I found only small mistakes :
sin(pi) = - 0
differ results (but I don't know what exact) e^10000 = 8.806818225662921E4342 - I got - e^10000 = 8.8068182256629479E4342
Adamanteus,
Thank so much for your words
If we try Ztest from raymond, we have 3 cases:
my case e^10000 = 8.806818225662921 E4342
You got - e^10000 = 8.8068182256629479E4342
Ztest - e^10000 = 8.806818225663056 E4342
Hi all,
First, thank you so much to all people for trying calcula24
and trying to help me;
Please, if you see an error or bug, reply to
this post; It is possible it needs some corrections.
If i know i post it here.
One word to Raymond: thank you so much for your lib and your help !
Calcula24 has some minor problems with signs.
I know also this problems with calcula24:
1. sin(3.5*pi/2)^2+cos(3.5*pi/2)^2 must be 1
2. -x^2+x+1=0 doesnt solve any -x^2... =0 or +x^2... =0
or 2x^2... =0
All this problems are solved.
Now you can try
Calcula25 Calculation rules 1. terms inside parentheses or brackets
2. functions
3. exponents or powers
4. multiplication and division
5. addition and subtraction
a) All calculatios are made in 80 bit format
e.g.: 2+3 both are taken as real10 numbers
b) Exceptions: expressions X^Y. Y is taken as integer32
if possible;
e.g.: (-2)^(2+3*1/3-1) but not here (-2)^(2+3*1/3-1.0)
because one term is 1.0
c) Expressions like this: SIN(...)^Y, 10^(...)^Y, ...
means
(SIN(...))^Y, (10^(...))^Y, ...
Some results from calcula25:
Quote
...
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
sin(3.5*pi/2)^2+cos(3.5*pi/2)^2
This is your expression: sin(3.5*pi/2)^2+cos(3.5*pi/2)^2
This is your Result: 1.000000000000000
sin(3.5*pi/2)^2+cos(3.5*pi/2)^2= 1.000000000000000
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
-x^2+x+1=0
This is your expression: -x^2+x+1=0
RootX0= -0.5000000000+ i 0.8660254038
RootX1= -0.5000000000- i 0.8660254038
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
ln(e)
This is your expression: ln(e)
This is your Result: 1.000000000000000
ln(e)= 1.000000000000000
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
ln(5000)
This is your expression: ln(5000)
This is your Result: 8.517193191416237
ln(5000)= 8.517193191416237
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
log(10e5)
This is your expression: log(10e5)
This is your Result: 6.000000000000000
log(10e5)= 6.000000000000000
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
e^750
This is your expression: e^750
This is your Result: 5.258494541454804E+0325
e^750= 5.258494541454804E+0325
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
e^-500
This is your expression: e^-500
This is your Result: 0.000000000000000
e^-500= 0.000000000000000
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
e^0
This is your expression: e^0
This is your Result: 1.000000000000000
e^0= 1.000000000000000
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
pi
This is your expression: pi
This is your Result: 3.141592653589793
pi= 3.141592653589793
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
e
This is your expression: e
This is your Result: 2.718281828459045
e= 2.718281828459045
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
e^-5000
This is your expression: e^-5000
This is your Result: 0.000000000000000
e^-5000= 0.000000000000000
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
e^-50000
This is your expression: e^-50000
This is your Result: 0
e^-50000= 0
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
10^5000
This is your expression: 10^5000
This is your Result: OVERFLOW
10^5000=OVERFLOW
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
pi^pi
This is your expression: pi^pi
This is your Result: 36.46215960720791
pi^pi= 36.46215960720791
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
pi^e
This is your expression: pi^e
This is your Result: 22.45915771836105
pi^e= 22.45915771836105
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
e^pi
This is your expression: e^pi
This is your Result: 23.14069263277927
e^pi= 23.14069263277927
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
e^e
This is your expression: e^e
This is your Result: 15.15426224147926
e^e= 15.15426224147926
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
e^-pi
This is your expression: e^-pi
This is your Result: 0.043213918263772
e^-pi= 0.043213918263772
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
pi^-e
This is your expression: pi^-e
This is your Result: 0.044525267266923
pi^-e= 0.044525267266923
---------------------------------------------
EDIT: one procedure was not completed
so i removed calcula25 for some time
QuoteOne word to Raymond: thank you so much for your lib and your help !
You are most welcome. Keep up the good work. You must be getting a lot of satisfaction from all that hard work which resulted in what you were trying to achieve. :clap: :clap: :clap:
Hi Raymond,
Thank you so much.
In any case you did a very good work ! :clap: :clap: :clap:
Hi all
1. Calcula25 doesnt solve (2+3)^2
Quote
-------------------------------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
(2+3)^2
This is your expression: (2+3)^2
This is your Result: ERROR
(2+3)^2=ERROR
2. Now, with
calcula26 we can use the constants
pi, +pi, -pi, e, +e, -e, or any constant in scientific notation in the equation
aX^2+bX+c=c0 (but not expressions !)
Examples:
-------------------------------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
-piX^2+eX+pi=2e3
This is your expression: -piX^2+eX+pi=2e3
RootX0= 0.432627989716133+ i -25.20778858587352
RootX1= 0.432627989716133- i -25.20778858587352
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
eX^2+piX=1
This is your expression: eX^2+piX=1
RootX0= 0.259874869004203
RootX1= -1.415602218795125
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
eX^2+piX-1=0
This is your expression: eX^2+piX-1=0
RootX0= 0.259874869004203
RootX1= -1.415602218795125
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
piX+e=2
This is your expression: piX+e=2
RootX0= -0.228636207064684
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
-eX^2=5
This is your expression: -eX^2=5
RootX0= 0+ i -1.356243785555241
RootX1= 0- i -1.356243785555241
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
-piX^2+2e3=1
This is your expression: -piX^2+2e3=1
RootX0= -25.22501660022046
RootX1= 25.22501660022046
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
-X^2+X-20=0
This is your expression: -X^2+X-20=0
RootX0= 0.500000000000000+ i -4.444097208657794
RootX1= 0.500000000000000- i -4.444097208657794
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
3. We have:
(e)^e = (+e)^e= e^e and (-e)^2= e^2 and (-e)^3= -e^3 and (-e)^e= ERROR
and
(pi)^pi = (+pi)^pi= pi^pi and (-pi)^2= pi^2 and (-pi)^3= -pi^3 and (-pi)^pi= ERROR
Hi
The first step to get the calculator is finished.
All procedures are completed, at least for now
(and while i dont find any error ! :wink).
Here is calcula26.
Try it and have a good luck !
Thank you all
RuiLoureiro
Hi all,
I added the following functions to calcula26:
sec(x), csc(x), cot(x), secd(x), cscd(x), cotd(x)
arcsec(x), arccsc(x), arccot(x), arcsecd(x), arccscd(x), arccotd(x)
They are in
calcula27Try it and say something !
Thanks :wink
Quote
-------------------------------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
cos(pi/6)
This is your expression: cos(pi/6)
This is your Result: 0.866025403784439
cos(pi/6)= 0.866025403784439
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
sec(pi/6)
This is your expression: sec(pi/6)
This is your Result: 1.154700538379252
sec(pi/6)= 1.154700538379252
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
1/cos(pi/6)
This is your expression: 1/cos(pi/6)
This is your Result: 1.154700538379252
1/cos(pi/6)= 1.154700538379252
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
pi/6
This is your expression: pi/6
This is your Result: 0.523598775598299
pi/6= 0.523598775598299
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
arcsec(1.1546)
This is your expression: arcsec(1.1546)
This is your Result: 0.523447935192547
arcsec(1.1546)= 0.523447935192547
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
sec(pi/6)
This is your expression: sec(pi/6)
This is your Result: 1.154700538379252
sec(pi/6)= 1.154700538379252
---------------------------------------------
Type an expression and press enter [ ex: -pi + 3.1*(7 - 2*8.3) ]
arcsec(1.154700538379252)
This is your expression: arcsec(1.154700538379252)
This is your Result: 0.523598775598300
arcsec(1.154700538379252)= 0.523598775598300
---------------------------------------------
I added the following functions to calcula26:
sec(x), csc(x), cot(x), secd(x), cscd(x), cotd(x)
arcsec(x), arccsc(x), arccot(x), arcsecd(x), arccscd(x), arccotd(x)
I added also a
table of constants to calcula26:
We can define up to
10 constants;
The name can have up to 8 characters: e.g.: exp=-10.5;sin=2.3;
It must begin with a letter (A to Z or a to z);
We type something like this:
t=-1e3; x=1.2; y=4.5; i=3; n=5; m=100; u=-5.2; v=8.9; u=10.1; z=10;
(with spaces or not)
Each constant must end with
; If we want to change to another table of constants, simply
we type another set;
They are in
calcula27Quote
******This calculator solves expressions in 80-bit REAL format*****
------------------------By Rui Loureiro----------------------------
Type an Expression, Equation or Constants and press enter
exp=-15.3;t=-1e3;x=-12.53;y=45.2;
This is your expression: exp=-15.3;t=-1e3;x=-12.53;y=45.2;
Type an Expression, Equation or Constants and press enter
3*t+2*x-y
This is your expression: 3*t+2*x-y
This is your Result: -3070.260000000000
3*t+2*x-y=-3070.260000000000
---------------------------------------------
Type an Expression, Equation or Constants and press enter
exp+t-x+y
This is your expression: exp+t-x+y
This is your Result: -957.5700000000000
exp+t-x+y=-957.5700000000000
---------------------------------------------
Type an Expression, Equation or Constants and press enter
sin(x+y)
This is your expression: sin(x+y)
This is your Result: 0.950261196835101
sin(x+y)= 0.950261196835101
Try it and say something !
Thank you
QuoteThis is your expression: e^-t+10
This is your Result: 11.00000000000000
e^-t+10= 11.00000000000000
Could you have another look at this one.
You have t = -1e3 = -1000
Therefore, -t = +1000, and e^1000 should be a large number. How do you arrive at the quoted result?
Raymond,
Sorry it's an error in the calculator while
trying to get the exponent in scientific format.
This is because we can type e^e or e^+e or e^-e
the second 'e' is a constant E not scientific format.
Now it is correct, thank you :thumbu
I removed the old calcula27 and
i replaced by the
new calcula27 Thanks :wink
Quote
-------------------------------------------------------------------
Type an Expression, Equation or Constants and press enter
e^1000
This is your expression: e^1000
This is your Result: 1.970071114017047E+0434
e^1000= 1.970071114017047E+0434
---------------------------------------------
Type an Expression, Equation or Constants and press enter
e^1e3
This is your expression: e^1e3
This is your Result: 1.970071114017046E+0434
e^1e3= 1.970071114017046E+0434
---------------------------------------------
Type an Expression, Equation or Constants and press enter
e^+1e3
This is your expression: e^+1e3
This is your Result: 1.970071114017046E+0434
e^+1e3= 1.970071114017046E+0434
---------------------------------------------
Type an Expression, Equation or Constants and press enter
e^-1e3
This is your expression: e^-1e3
This is your Result: 0.000000000000000
e^-1e3= 0.000000000000000
---------------------------------------------
Type an Expression, Equation or Constants and press enter
e^-1000
This is your expression: e^-1000
This is your Result: 0.000000000000000
e^-1000= 0.000000000000000
---------------------------------------------
Type an Expression, Equation or Constants and press enter
t=-1e3;u=1e3;
This is your expression: t=-1e3;u=1e3;
Type an Expression, Equation or Constants and press enter
e^-t
This is your expression: e^-t
This is your Result: 1.970071114017046E+0434
e^-t= 1.970071114017046E+0434
---------------------------------------------
Type an Expression, Equation or Constants and press enter
e^u
This is your expression: e^u
This is your Result: 1.970071114017046E+0434
e^u= 1.970071114017046E+0434
---------------------------------------------
Type an Expression, Equation or Constants and press enter
e^e
This is your expression: e^e
This is your Result: 15.15426224147926
e^e= 15.15426224147926
---------------------------------------------
Type an Expression, Equation or Constants and press enter
e^+e
This is your expression: e^+e
This is your Result: 15.15426224147926
e^+e= 15.15426224147926
---------------------------------------------
Type an Expression, Equation or Constants and press enter
e^-e
This is your expression: e^-e
This is your Result: 0.065988035845313
e^-e= 0.065988035845313
---------------------------------------------
Type an Expression, Equation or Constants and press enter
Can i load Fpu from a register ?
I have a value in the EAX register
and i want to load it directly into Fpu ?
Impossible ?
Thanks
push eax
fld real4 ptr [esp]
pop eax
Quote from: dedndave on March 30, 2012, 08:18:39 PM
push eax
fld real4 ptr [esp]
pop eax
Values in a register from previous computations would normally be integers. If so, the correct load would be:
fild dword ptr [esp]
Quoteand i want to load it directly into Fpu ?
You are correct: impossible. No single instruction can do that.
Quote from: raymond on March 30, 2012, 08:41:02 PMValues in a register from previous computations would normally be integers. If so, the correct load would be:
fild dword ptr [esp]
huh ?
oh - i got it - lol
push eax
fild dword ptr [esp]
pop eax
Raymond and Dave,
Thank you !
Tomorrow calcula27 does factorial ( i hope :lol)
Hi
i wrote this procedure to calculate the logarithm base B
( B = _Integer32 positive not 1) and it works perfectly
when i use base e (fldln2) or base 10 (fldlg2).
1. What is the best: base 10 or base E ?
2. Is there a directly way to calculate log base 2 ?
Quote
fld tbyte ptr OperandZ
cmp _Integer32, 10
je short _fnc3 ; go to log(x)
fldln2 ; or this: fldlg2
;fldlg2
fxch
fyl2x ;->[log2(OperandZ)]*ln(2) = ln(OperandZ) base e
fstsw ax ;retrieve exception flags from FPU
fwait
shr al,1 ;test for invalid operation
jc _erro0
fild dword ptr _Integer32
fldln2 ; or this: fldlg2
;fldlg2
fxch
fyl2x ;->[log2(_Integer32)]*ln(2) = ln(_Integer32) base e
fstsw ax ;retrieve exception flags from FPU
fwait
shr al,1 ;test for invalid operation
jc _erro2
fdiv ; st(0)= ln(OperandZ) / ln(_Integer32)
jmp _exit
_erro2: fstp st
_erro0: fstp st ;get rid of st(0)
ret
Log10 are called "common logs" (Log)
Loge are called "natural logs" (Logn)
both are used and should be supported
the FYL2X instruction calculates Y*Log2(X)
that's pretty close :P
if Y = 1, then it calculates Log2
Dave,
Ok thanks, it is exactly that
Quote
fld tbyte ptr OperandZ
fld1
fxch
fyl2x ->[log2(OperandZ)]*1.0 = log2(OperandZ) base 2
fstsw ax ;retrieve exception flags from FPU
fwait
shr al,1 ;test for invalid operation
jc _erro0
ret
Quote
Log10 are called "common logs" (Log)
Loge are called "natural logs" (Logn)
both are used and should be supported
both are supported in calcula27:
ln(x) - "natural logs"
log(x) - "common logs"
In the next calcula28 we can use
logb(x,n) - base n
LOGB(x,n) - base n
and more ...
yah - "ln" is the right way - not "logn" :U
Ln is used in trig and geometry, etc
Log is used in physics, electronics, etc
for example, a decibel is one tenth of a bel (named after Alexander Graham Bell, of course)
L(Bels) = Log(P2/P1), where P1,2 are power levels and L is a ratio of level change
Hi all,
With
calcula28 we can use
logb(x,n) - base n [e.g.: logb(23,5) ]
LOGB(x,n) - base n
n! - factorial [e.g.: 10! ]
comb(n, k) - k-combination of n [e.g.: comb(20,5) ]
COMB(n, k)
Try it and say something
Thanks
i replaced calcula28. Now we can do t=10;k=5;
and comb(n,k) Here are some results
Quote
-------------------------------------------------------------------
Type an Expression, Equation or Constants and press enter
1e23
This is your expression: 1e23
This is your Result: 1.000000000000000E+0023
1e23= 1.000000000000000E+0023
---------------------------------------------
Type an Expression, Equation or Constants and press enter
10^23
This is your expression: 10^23
This is your Result: 1.000000000000000E+0023
10^23= 1.000000000000000E+0023
---------------------------------------------
Type an Expression, Equation or Constants and press enter
10!
This is your expression: 10!
This is your Result: 3628800.000000000
10!= 3628800.000000000
---------------------------------------------
Type an Expression, Equation or Constants and press enter
100!
This is your expression: 100!
This is your Result: 9.332621544394415E+0157
100!= 9.332621544394415E+0157
---------------------------------------------
Type an Expression, Equation or Constants and press enter
10!/(2!*(10-2)!)
This is your expression: 10!/(2!*(10-2)!)
This is your Result: 45.00000000000000
10!/(2!*(10-2)!)= 45.00000000000000
---------------------------------------------
Type an Expression, Equation or Constants and press enter
comb(10,2)
This is your expression: comb(10,2)
This is your Result: 45.00000000000000
comb(10,2)= 45.00000000000000
---------------------------------------------
Type an Expression, Equation or Constants and press enter
comb(500,20)
This is your expression: comb(500,20)
This is your Result: 2.667198512837438E+0035
comb(500,20)= 2.667198512837438E+0035
---------------------------------------------
Type an Expression, Equation or Constants and press enter
1000!
This is your expression: 1000!
This is your Result: 4.023872600770939E+2567
1000!= 4.023872600770939E+2567
---------------------------------------------
Type an Expression, Equation or Constants and press enter
log(23)
This is your expression: log(23)
This is your Result: 1.361727836017593
log(23)= 1.361727836017593
---------------------------------------------
Type an Expression, Equation or Constants and press enter
logb(23,10)
This is your expression: logb(23,10)
This is your Result: 1.361727836017593
logb(23,10)= 1.361727836017593
---------------------------------------------
Type an Expression, Equation or Constants and press enter
ln(23)
This is your expression: ln(23)
This is your Result: 3.135494215929150
ln(23)= 3.135494215929150
---------------------------------------------
Type an Expression, Equation or Constants and press enter
t=10;x=13;
This is your expression: t=10;x=13;
Type an Expression, Equation or Constants and press enter
ln(t+x)
This is your expression: ln(t+x)
This is your Result: 3.135494215929150
ln(t+x)= 3.135494215929150
---------------------------------------------
Type an Expression, Equation or Constants and press enter
ln(x-t)
This is your expression: ln(x-t)
This is your Result: 1.098612288668110
ln(x-t)= 1.098612288668110
---------------------------------------------
Type an Expression, Equation or Constants and press enter
ln(3)
This is your expression: ln(3)
This is your Result: 1.098612288668110
ln(3)= 1.098612288668110
---------------------------------------------
Type an Expression, Equation or Constants and press enter
logb(25,12)
This is your expression: logb(25,12)
This is your Result: 1.295370924755994
logb(25,12)= 1.295370924755994
---------------------------------------------
Type an Expression, Equation or Constants and press enter
logb(25,16)
This is your expression: logb(25,16)
This is your Result: 1.160964047443681
logb(25,16)= 1.160964047443681
---------------------------------------------
Type an Expression, Equation or Constants and press enter
logb(12.25,20)
This is your expression: logb(12.25,20)
This is your Result: 0.836365104822369
logb(12.25,20)= 0.836365104822369
---------------------------------------------
Type an Expression, Equation or Constants and press enter
logb(10,2)
This is your expression: logb(10,2)
This is your Result: 3.321928094887362
logb(10,2)= 3.321928094887362
---------------------------------------------
Rui,
Have you considered testing your calculation code against an established library, GSL for example?
http://www.masm32.com/board/index.php?topic=16725.0
Hi MichaelW
The answer is no. To test some functions i can use
the Raymond program, but i need more time to do this.
But, in any way, i dont know how to access to that
"established" library. Is it easy to use ?
My work is to use the correct instructions, coding
the procedures correctly and in this way i hope
the result is correct (unless it has a bug).
Did you test some functions ?
Thank you for your reply Michael :wink
Rui Loureiro
Now,
calcula29 has one more function:
mean(x1,x2,...,xn)
It gives the variance and standard deviation
Try it and say something
Thanks
Quote
-------------------------------------------------------------------
Type an Expression, Equation or Constants and press enter
mean(10,11,12,13,14,15)
This is your expression: mean(10,11,12,13,14,15)
---------------------------------------------
mean(10,11,12,13,14,15)= 12.50000000000000
Variance: 2.916666666666667
Standard Deviation: 1.707825127659933
Sample Variance: 3.500000000000000
Sample Standard Deviation: 1.870828693386971
---------------------------------------------
what we need is to make a little GUI app
with support for variable names, subscripting, and superscripting :U
add in the normal scientific calculator buttons - with unit conversions, memory, and so on
Hi Dave,
Quote
what we need is to make a little GUI app
Do you want to share this project with me ?
Anyone wants ?
Quote
with support for variable names
With calcula29 we can define 10 variable names
Now, with
calcula30 we can solve
a system of 2 linear equations.
It is under test but it seems it works correctly.
I use matrices to solve it.
We must use aX+bY=c; fX+gY=h; The first must be X and second Y.
Quote
-------------------------------------------------------------------
Type an Expression, Equation or Constants and press enter
2x+3y=10;x-y=2;
This is your expression: 2x+3y=10;x-y=2;
---------------------------------------------
X= 3.200000000000000
Y= 1.200000000000000
---------------------------------------------
Type an Expression, Equation or Constants and press enter
well - most members don't like the way i write code - lol
i don't care for .IF/.ELSEIF/.ENDIF or .WHILE/.ENDW, nor do i care for indenting code
but - all you need is an edit box and a bunch of buttons - toss in some menus :P
the GUI part would be much easier than the math part