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Strange problem [message #28141] Sun, 25 November 2001 16:46 Go to previous message
Andre Kyme is currently offline  Andre Kyme
Messages: 19
Registered: September 2001
Junior Member
Hi everyone,

type: for i=0., 0.8., 0.1 do print,i
That's bad isn't it?


Or what about:

for i=0., 9.6, 0.1 do print,i
for i=0., 9.7, 0.1 do print,i
Same last element?

If you stick a "d" after the first 0 - ie. make it double precision:

for i=0.d, 0.8, 0.1 do print,i

- then it seems to be OK, kind of

Or try this:
a=fltarr(100)
for i=0., 9.7., 0.1 do a[i*10]=i
Oh darn, 2.3 is not there!
Neither is 9.3.
Using the "d" trick seems to fix it, but why the need when we're only
using steps of 0.1?

Anybody know what's going on?

Andre Kyme
Department of Medical Physics
Westmead Hospital
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