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1e38 limit? [message #65336]

Fri, 27 February 2009 07:55

paulartcoelho
Messages: 30
Registered: March 2007

Member

hello,

i read float numbers from a text file, and eventually i need to
multiply them by large numbers ~1e40.
'result' is the array that i read from the text file, and 'chi' is the
array i'm analysing. i extract it with:

chi = double(reform(result[3,*]))

and then i do something like:

chi = chi * 1e40

but the routine apparently enters into an infinite loop, lots of CPU,
RAM and HD usage, and i end up having to kill the process after a
while. trial-and-error showed me that as long as i keep the
multiplicative factor <= 1e38, everything runs smoothly.

i tried even a stupid:
chi = chi * 1e38
chi = chi * 1e2

but the routine still gets crazy with that.

what is going on? how can i work it around?

many thanks,
paula

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		1e38 limit? By: paulartcoelho on Fri, 27 February 2009 07:55
		Re: 1e38 limit? By: paulartcoelho on Mon, 02 March 2009 04:29

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