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A bug in MOD ? [message #41197] Fri, 24 September 2004 03:30
Chris Lee is currently offline  Chris Lee
Messages: 101
Registered: August 2003
Senior Member
Hi,

Is there a bug in the floating point implentation of MOD ? or maybe a
special case when a !pi is used.

IDL> print, 1.0 mod 0.1
0.1000000
;should be 0.0

IDL> print, (1.0*!pi) mod (0.1 * !pi)
0.00000

At least 'a-floor(a/b)*b ' seems to work.

Chris.

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