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SergeyGalyamin1-Visitor
1-Visitor
March 24, 2010
Question

Error: Hankel functions of complex argument

  • March 24, 2010
  • 1 reply
  • 5182 views
I'm working with Hankel functions of complex argument. The built-in function H1(m,x) in MathCad 14 (M020, free trial) behave incorrectly at complex x with large |x| (see Hankel 1,2.JPG). Is it possible to fix this problem (may be the appropriate patch is avialable)?

1 reply

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SergeyGalyamin1-VisitorAuthor
1-Visitor
August 23, 2010

Collegues, why nobody reply anything? I can imagine 4 reasons:

1. Nobody uses MathCad14 (but this is unreal)

2. Nobody uses Hankel functions in MathCad14 (this is unreal too)

3. Nobody uses Hankel function with the large argument

4. The answer to my question is obvious.

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RichardJ19-Tanzanite
19-Tanzanite
August 23, 2010

I can't find this post in the Collaboratory, so I assume you posted it on the old PTC forums, so:

5) Almost nobody read the PTC forums, so your question just got missed

Mathcad 15 help says there's a scaled version for large values:

Bessel Functions

"H1 scaled version has a scale factor of exp(-z*i). H2 scaled version has a scale factor of exp(z*i). Type .sc after the function name for the scaled function."

Did that exist in version 14?

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