Lattice Multiplication

The lattice method is an alternative to long multiplication. The multiplicand is written on top of a grid and the multiplier down its right side. The least significant digits of the sums along the shaded diagonals plus carries give the digits of the result. The yellow lines illustrate the elementary multiplications for each cell of the polynomial grid.
 
Powered by Wolfram Mathematica
Give us your feedback
Give us your feedback

Source page:




 often  occasionally  never

Note: Please do not include anything you consider confidential or proprietary. Your message and contact information may be shared with the author of any specific Demonstration for which you give feedback, but will not otherwise be published or distributed.
Privacy Policy »

Note: To run this Demonstration you need the free
Mathematica Player
or Mathematica 7+
Download or upgrade to Mathematica Player 7
I already have Mathematica Player or Mathematica 7+