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fractional part of a number

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fractional part of a number

by stackman » Mon Oct 15, 2012 1:35 pm

Hi,
Is there a simple way to return the fractional part of a number in common lisp?
At the moment I am using

Code: Select all: (multiple-value-call (lambda (x y)(declare (ignore x)) y) (floor 1.5))

but this seems a bit verbose.

stackman: Posts: 28; Joined: Sat Oct 06, 2012 5:44 am

Re: fractional part of a number

by Goheeca » Mon Oct 15, 2012 2:19 pm

Have a look at mod & rem.

Code: Select all: (mod 1.5 1)

cl-2dsyntax is my attempt to create a Python-like reader. My mirror of CLHS (and the dark themed version).

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Re: fractional part of a number

by Paul » Mon Oct 15, 2012 2:30 pm

stackman wrote:Hi,
Is there a simple way to return the fractional part of a number in common lisp?
At the moment I am using
Code: Select all
(multiple-value-call (lambda (x y)(declare (ignore x)) y) (floor 1.5))

but this seems a bit verbose.

FWIW, (nth-value 1 (floor 1.5))

Paul: Posts: 106; Joined: Tue Jun 02, 2009 6:00 am

Re: fractional part of a number

by stackman » Thu Oct 18, 2012 1:01 am

Thanks for the replies, this is definitely better.

stackman: Posts: 28; Joined: Sat Oct 06, 2012 5:44 am

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