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scipy.special.modstruve¶
- scipy.special.modstruve(v, x) = <ufunc 'modstruve'>¶
Modified Struve function.
Return the value of the modified Struve function of order v at x. The modified Struve function is defined as,
Lv(x)=−ıexp(−πıv/2)Hv(x),where Hv is the Struve function.
Parameters: v : array_like
Order of the modified Struve function (float).
x : array_like
Argument of the Struve function (float; must be positive unless v is an integer).
Returns: L : ndarray
Value of the modified Struve function of order v at x.
See also
Notes
Three methods discussed in [R432] are used to evaluate the function:
- power series
- expansion in Bessel functions (if |z|<|v|+20)
- asymptotic large-z expansion (if z≥0.7v+12)
Rounding errors are estimated based on the largest terms in the sums, and the result associated with the smallest error is returned.
References
[R432] (1, 2) NIST Digital Library of Mathematical Functions http://dlmf.nist.gov/11