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Re: IDL 4.0.1 Windows: FFT Pblm
| Re: IDL 4.0.1 Windows: FFT Pblm [message #5125] |
Fri, 06 October 1995 00:00 |
mahan
Messages: 17
Registered: October 1994
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Junior Member |
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It seems that my problem is associated with my Cyrix processor. For those
running IDL for Windows on a Cyrix processor, beware of this problem.
I swapped processors to an old Intel 33mhz processor (running at 40mhz)
and the FFT works as expected.
-Steve
**************
Steve Mahan (mahan@aurora.phys.utk.edu) wrote:
: The Problem:
: IDL 4.0.1 for Windows returns -1.#IND0 and 1.#QNAN values for
: FFTs of arrays that are a power of 2 in dimension. When I increase the number
: of data points to 2^n+1 (or anything BUT 2^n number of data points), I get
: reasonable results. If the /double switch is set, the FFT works fine for
: any size in 1 or 2 D anyway.
: I'm running IDL 4.0.1 under windows 95 on a Cyrix 486DX50 platform.
: Any ideas or similar problems? It seemed to work fine in version 4.0.
: -Steve
: __________________________
: Stephen L. Mahan
: mahan@aurora.phys.utk.edu
--
__________________________
Stephen L. Mahan
mahan@aurora.phys.utk.edu
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