Math Vector Library 1.1 Advanced Trigonometry Extension
Programming Reference Manual Fortran
Version 1.1 DD-00012-111

7.7 vatasinh - Vector hyperbolic arcsine sinh-1(x)

subroutine vatasinh (n, y, incy, x, incx); 
subroutine vatasinhf(n, y, incy, x, incx); 
 
subroutine vatasinh_64 (n, y, incy, x, incx); 
subroutine vatasinhf_64(n, y, incy, x, incx);

Given an input vector x and a result vector y, this function computes:

y =sinh-1(x)
7.7.1 Parameters

N - INTEGER

ENTRY: Number of elements of x and y.
CONSTRAINT: n ≥1.

Y - ARRAY OF REAL

EXIT: Result vector y.
CONSTRAINT: Must contain n× incy elements.
CONSTRAINT: Must not overlap with array x.

INCY - INTEGER

ENTRY: Stride for the vector y.
CONSTRAINT: incy̸= 0.
BEHAVIOR: A negative stride will traverse the array in reverse.

X - ARRAY OF REAL

ENTRY: Input vector x.
CONSTRAINT: Must contain n× incx elements.
CONSTRAINT: Must not overlap with array y.

INCX - INTEGER

ENTRY: Stride for the vector x.
CONSTRAINT: incx̸= 0.
BEHAVIOR: A negative stride will traverse the array in reverse.

7.7.2 Function Graphs

PIC