pub fn zero() -> Matrix4 {
        Matrix4 {data: [[0.0, 0.0, 0.0, 0.0],
                        [0.0, 0.0, 0.0, 0.0],
                        [0.0, 0.0, 0.0, 0.0],
                        [0.0, 0.0, 0.0, 0.0]]}
    }
/// Returns a matrix with all values set to 0.
Returns a matrix with all values set to 0.
Returns a matrix with all values set to 0 .
pub fn zero() -> Matrix4 {
        Matrix4 {data: [[0.0, 0.0, 0.0, 0.0],
                        [0.0, 0.0, 0.0, 0.0],
                        [0.0, 0.0, 0.0, 0.0],
                        [0.0, 0.0, 0.0, 0.0]]}
    }
pub fn zero ( ) -> Matrix4 { Matrix4 { data : [ [ 0.0 , 0.0 , 0.0 , 0.0 ] , [ 0.0 , 0.0 , 0.0 , 0.0 ] , [ 0.0 , 0.0 , 0.0 , 0.0 ] , [ 0.0 , 0.0 , 0.0 , 0.0 ] ] } }
Returns a matrix with all values set to 0.
Returns a matrix with all values set to 0 .