# CosF32

Computes the operamath 32.32 cosine of a 16.16 fraction.

### Synopsis

`frac32 CosF32( frac32 *c, frac16 x )`

### Description

This macro returns the operamath 32.32 cosine of a 16.16 fraction. In operamath coordinates, there are 256.0 units in a circle.

The macro actually calls the `SinF32()` function with one quarter circle added to the input value.

### Arguments

c
  A pointer to a 32.32 fraction containing the result.

x
  A 16.16 fraction describing the angle of the circle.

### Return Value

The macro returns the cosine of the input angle.

### Implementation

Macro implemented in operamath.h V20.

### Associated Files

operamath.h

### See Also

``SinF16`(), CosF16(), SinF32(), CosF30(), SinF30()`