Method: RMath3D::RMtx2#*

Defined in:
lib/rmath3d/rmath3d_plain.rb

#*(arg) ⇒ Object

call-seq: *

mtx1 * mtx2 : Binary multiply operator.



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# File 'lib/rmath3d/rmath3d_plain.rb', line 412

def *( arg )
  case arg
  when Fixnum, Float, Bignum
    return RMtx2.new( arg*self.e00, arg*self.e01,
                      arg*self.e10, arg*self.e11 )

  when RMtx2
    result = RMtx2.new
    for row in 0...2 do
      for col in 0...2 do
        sum = 0.0
        for i in 0...2 do
          sum += getElement( row, i ) * arg.getElement( i, col )
        end
        result.setElement( row, col, sum )
      end
    end
    return result

  else
    raise TypeError, "RMtx2#*(arg) : Unknown type #{arg.class} given."
    return nil
  end
end