# FORCOS

Utility/GeneralEvaluates a Fourier Cosine. A Fourier Cosine series is a collapsed version of a Fourier series, where the factors multiplying the SIN() terms are all zero.

## Use

This function can be called by any user-defined subroutine.

## Format

- Fortran Calling Syntax
- CALL FORCOS (X, X0, W, PAR, NPAR, IORD, VALUE, ERRFLG)
- C/C++ Calling Syntax
- c_forcos(x, x0, w, par, npar, iord, value, errflg)
- Python Calling Syntax
- [value, errflg] = py_forcos(x, x0, par, npar, iord)
- MATLAB Calling Syntax
- [value, errflg] = m_forcos(x, x0, par, npar, iord)

## Attributes

`X`- [double precision]
`X0`- [double precision]
`W`- [double precision]
`PAR`- [double precision]
`NPAR`- [integer]
`IORD`- [integer]

## Output

- VALUE
- [integer]
`ERRFLG`- [logical]