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H20
Hankel function of the second kind, order zero.
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Loading LOADSUB ALL FROM "BESRC.HTS"
or LOADSUB FROM "MATHLIB.HTS"
Usage REAL X
COMPLEX C
C=FNH20(X)
Description
FNH20 returns the value of the Hankel function of the second kind and order zero of x, H0(2)(x). For positive values of x, the real component of the value returned contains J0(x) and the imaginary component contains Y0(x). For negative values of x, the real component contains 3J0(x) and the imaginary component contains -Y0(x).
H0(2)(x)
 Arg[H0(2)(x)], degrees
 Errors
FNH20 causes an HTBasic error if its argument is not of type REAL. It also causes an error if the value of x is near zero, since the imaginary component of H0(2)(0) is -.
See Also
H10, H21, J0, Y0
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