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

22.7 vatchcv - Vector complex hacoversine hcv(x)

subroutine vatchcv (n, y, incy, x, incx); 
subroutine vatchcvf(n, y, incy, x, incx); 
 
subroutine vatchcv_64 (n, y, incy, x, incx); 
subroutine vatchcvf_64(n, y, incy, x, incx);

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

           1
y =hcv(x)= -(1-sin(x))
           2
22.7.1 Parameters

N - INTEGER

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

Y - ARRAY OF COMPLEX

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 COMPLEX

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.

22.7.2 Function Graphs

PIC