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RCMAN
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Joined: 31/10/2020
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Posted: 03:27pm 10 Dec 2020

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If I have a float value how do I get the value and remainder separately?

Thanks
RC

twofingers

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Posted: 03:34pm 10 Dec 2020

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Hi RC,

try FIX(number)

Michael

causality ≠ correlation ≠ coincidence

CaptainBoing

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Posted: 03:36pm 10 Dec 2020

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x= 3.141

y=Int(x)' integer part
z=x-y ' fractional part

RCMAN
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Posted: 04:01pm 10 Dec 2020

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CaptainBoing said x= 3.141

y=Int(x)' integer part
z=x-y ' fractional part

Thank you for both your answers.

RC

RCMAN
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Posted: 04:49pm 10 Dec 2020

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RCMAN said

CaptainBoing said x= 3.141

y=Int(x)' integer part
z=x-y ' fractional part

Thank you for both your answers.

RC

Working Perfect!
Edited 2020-12-11 02:50 by RCMAN

Bizzie
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Posted: 08:18pm 10 Dec 2020

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Why not use MOD?

eg mod(3.141,1) = .141

Rob White

Nimue

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Posted: 08:22pm 10 Dec 2020

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I wonder which way is less computationally complex:

Int(x) and Mod(x,1) OR

Int(x) and calculate (x-int)

Any other ways?

Nim

Entropy is not what it used to be

Nimue

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Posted: 08:24pm 10 Dec 2020

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Nimue said I wonder which way is less computationally complex:

Int(x) and Mod(x,1) � OR

Int(x) and calculate (x-int)

Any other ways?

Nim

I rejected making into a string and splitting up and then making back into numbers.

Entropy is not what it used to be

toml_12953
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Posted: 08:26pm 10 Dec 2020

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Nimue said I wonder which way is less computationally complex:

Int(x) and Mod(x,1) � OR

Int(x) and calculate (x-int)

Any other ways?

Nim

I don't know about MMBASIC but I do know that in some BASICs, the subtraction method sometimes has a rounding error. In ANSI/ISO BASIC, there's an FP() function to get the fractional part that eliminates errors.

toml_12953
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Posted: 08:27pm 10 Dec 2020

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Bizzie said Why not use MOD?

eg mod(3.141,1) = .141

Clever!

twofingers

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Posted: 08:37pm 10 Dec 2020

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Nimue said I rejected making into a string and splitting up and then making back into numbers.

I don't!

>Print field�("3.14159",1,".")
3
>Print field�("3.14159",2,".")
14159

not soo bad!

causality ≠ correlation ≠ coincidence

TassyJim

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Posted: 08:44pm 10 Dec 2020

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Quote mod(3.141,1)

Have you tried?

The format for MOD would be 3.141 MOD 1 in MMBasic
and MOD seems to only works on integers so will always give zero.

It would be worth checking the difference between CINT, INT and FIX if you are likely to have negative numbers.
Anther can of worms.

PRINT "N",,"INT(N)",,"CINT(N)",,"FIX(N)"
FOR n = -2 TO 2 STEP 0.25
PRINT n,,INT(n),,CINT(n),,FIX(n)
NEXT n

Jim

VK7JH
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RCMAN
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Posted: 08:44pm 10 Dec 2020

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twofingers said

Nimue said I rejected making into a string and splitting up and then making back into numbers.

I don't!

>Print field�("3.14159",1,".")
3
>Print field�("3.14159",2,".")
14159

not soo bad!

I was looking for a modulus command used in C

RC

vegipete

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Posted: 08:53pm 10 Dec 2020

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INT reduces the number by the fractional part - potentially problematic for negative numbers.
CINT rounds to the nearest integer - up or down.
FIX just hacks off the fractional part - the positive or negative value gets closer to zero.

Take your pick...

Visit Vegipete's *Mite Library for cool programs.

twofingers

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Posted: 09:09pm 10 Dec 2020

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@RC

Quote I was looking for a modulus command used in C

something like that:

function fract(a as float) as float
fract=a-FIX(a)
end function

causality ≠ correlation ≠ coincidence

RCMAN
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Posted: 09:17pm 10 Dec 2020

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twofingers said @RC

Quote I was looking for a modulus command used in C

something like that:

function fract(a as float) as float
�fract=a-FIX(a)
end function

I was working out row and column and CaptainBoing example helped me solve that problem.

It's all good now.

One thing out of the way, moving on to animation and background detection.

RC

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