HP MLIB User's Guide Vol. 2 7th Ed.

844 HP MLIB User’s Guide

vsasinh, vdasinh The arc hyperbolic sine of the elements of a vector

Name vsasinh, vdasinh

The arc hyperbolic sine of the elements of a vector

Purpose vsasinh and vdasinh calculate the arc hyperbolic sine function of vector

elements:

y(i) = asinh(a(i)), for 1 <= i <= n

Usage The Fortran include ﬁle math.ﬁ declares interfaces for these subroutines,

suitable for both VMATH and VMATH8. The interfaces are compatible with

Intel’s MKL VML (Vector Math Library).

SUBROUTINE vsasinh(n, a, y)

INTEGER, INTENT(IN) :: n

REAL (KIND=4), DIMENSION(n), INTENT(IN) :: a

REAL (KIND=4), DIMENSION(n), INTENT(OUT):: y

SUBROUTINE vdasinh(n, a, y)

INTEGER, INTENT(IN) :: n

REAL (KIND=8), DIMENSION(n), INTENT(IN) :: a

REAL (KIND=8), DIMENSION(n), INTENT(OUT):: y

Input n Number of elements to be calculated.

a Array of length at least n, specifying the input vector.

Output y Array of length at least n specifying the output vector.