http://benji3up2kxewkqfcq7buxk2xd6zwy3zggnurkrm3l4cvwy2iipvyyad.onion/mirrors/gmpdoc/Toom-4_002dWay-Multiplication.html
In GMP the following points are used, Point Value t=0 x0 * y0 , which gives w0 immediately t=1/2 (x3+2*x2+4*x1+8*x0) * (y3+2*y2+4*y1+8*y0) t=-1/2 (-x3+2*x2-4*x1+8*x0) * (-y3+2*y2-4*y1+8*y0) t=1 (x3+x2+x1+x0) * (y3+y2+y1+y0) t=-1 (-x3+x2-x1+x0) * (-y3+y2-y1+y0) t=2 (8*x3+4*x2+2*x1+x0) * (8*y3+4*y2+2*y1+y0) t=inf x3 * y3 , which gives w6 immediately The number of additions and subtractions for...