

void tm_clear( MATRIX tm )
MATRIX tm; // transformation matrix to receive result



Synopsis 
#include "silver.h"
The tm_clear function initializes the matrix tm to the unity matrix, i.e. an array with the following values:


Parameters 
tm is the address of a 4x4 array of doubles.


Return Value 
none.


Comments 
The unity matrix is also known as the identity matrix; i.e., one that maps a space onto itself. 


