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Old   June 19, 2005, 23:40
Default help!udf compile error
  #1
Fred
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hello,every cfder.i've got a question to ask.

when i compile the udf,there is no error messages,but when i initial the fluid domain and iterate to compute.there exist the error messages:

Error: Floating point error: invalid number

what does it mean?who can give me some suggestion?

thank u very much!
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Old   June 20, 2005, 04:51
Default Re: help!udf compile error
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Joey
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Hi, I had the same experience with you. Maybe there is a number divided by "0". For exmaple: there is something like this :C_R(c,t)/C_U(c,t) in your UDF; when you initialized C_U(c,t)with zero,the programm will stop.You need to rewrite your UDF, maybe like this C_R(c,t)/(C_U(c,t)+0.0000000001). Hope it helps.

Joey
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Old   June 20, 2005, 07:49
Default Re: help!udf compile error
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Fred
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Thanks,

i'll get a try!
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Old   June 20, 2005, 20:38
Default Re: help!udf compile error
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Fred
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thank you,Joey.

your suggestion is really helpful.
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Old   June 21, 2005, 00:05
Default Re: help!udf compile error
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Joey
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If your UDF is long engouh, you will have to trace your code line by line. That's really a painful procedure. Good luck!
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