Method: RMath3D::RMtx2#sub!

Defined in:
lib/rmath3d/rmath3d_plain.rb

#sub!(other) ⇒ Object

call-seq: mtx1.sub!( mtx2 )

mtx1 -= mtx2 : subtracts the elements of mtx2 from corresponding mtx1 elements.



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# File 'lib/rmath3d/rmath3d_plain.rb', line 483

def sub!( other )
  if ( other.class != RMtx2 )
    raise TypeError, "RMtx2#sub! : Unknown type #{other.class} given as RMtx2."
    return nil
  end

  result = RMtx2.new
  for row in 0...2 do
    for col in 0...2 do
      self.setElement( row, col, getElement(row,col) - other.getElement(row,col) )
    end
  end

  return self
end