mulValue method
Returns a new matrix with components multiplied by value.
Implementation
MatrixD mulValue(double value) => .mat4(
m0*value, m1*value, m2*value, m3*value,
m4*value, m5*value, m6*value, m7*value,
m8*value, m9*value, m10*value, m11*value,
m12*value, m13*value, m14*value, m15*value,
);