ChapterQ1n

Q1n

LeGendre function of the second kind, degree one.

Loading LOADSUB ALL FROM "LEGENDRE.HTS"

or LOADSUB FROM "MATHLIB.HTS"

Usage INTEGER N

REAL X,Y

Y=FNQ1n(N,X)

Description

FNQ1n returns the value of the Legendre function of the second kind, degree one, and order n of x, Qn1(x). N must be positive or zero.

Errors

FNQ1n causes an HTBasic error if its arguments are not of the types listed in the usage section, above, or if the polynomial's absolute value would be larger than MAXREAL, the largest value representable.

See Also

P1n, Qn

Qn1(x)

Note

For n > 2, the algorithm used computes the value of Qn1 using a recursion from the values of Q11 and Q21. The computation time increases with n-1 and the computation accuracy decreases with n-1.