Kölbig K S and Schorr B (1984) A program package for the Landau distribution Comp. Phys. Comm.31 97–111
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Arguments
1: – Real (Kind=nag_wp)Input
On entry: the argument of the function.
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Error Indicators and Warnings
None.
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Accuracy
At least significant digits are usually correct, but occasionally only . Such accuracy is normally considered to be adequate for applications in experimental physics.
Because of the asymptotic behaviour of , which is of the order of , underflow may occur on some machines when is moderately large and negative.
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Parallelism and Performance
g01mtf is not threaded in any implementation.
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Further Comments
None.
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Example
This example evaluates at , and prints the results.