question: public static void rotateM ( float [ ] m , int mOffset , float a , float x , float y , float z ) { synchronized ( TEMP_MATRIX_ARRAY ) { setRotateM ( TEMP_MATRIX_ARRAY , 0 , a , x , y , z ) ; multiplyMM ( TEMP_MATRIX_ARRAY , 16 , m , mOffset , TEMP_MATRIX_ARRAY , 0 ) ; System . arraycopy ( TEMP_MATRIX_ARRAY , 16 , m , mOffset , 16 ) ; } }
target:  Rotates matrix m in place by angle a (in degrees) around the axis (x, y, z)