auto-generated by docbook2man-spec from docbook-utils package
"FcMatrixRotate" "3" "22 12月 2023" "Fontconfig 2.15.0" ""
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