| FcMatrixRotate(3) |  | FcMatrixRotate(3) | 
NAME
 FcMatrixRotate - Rotate a matrix
SYNOPSIS
#include <fontconfig/fontconfig.h>
 
void FcMatrixRotate (FcMatrix *
matrix, double cos, double sin); 
DESCRIPTION
  FcMatrixRotate rotates 
matrix by the angle who's sine is  
sin and cosine is  
cos. This is done by multiplying by the matrix:
 
  cos -sin
  sin  cos