1 * 2 *Proof of the Pythagoras' theorem (infer from the graph): 3 *White square = red square + blue square 4 * 5 *MODE=2100,1100 FRAME=0 HEADER= XDIV=0,1,0 YDIV=0,1,0 6 *XSCALE=0,21 YSCALE=0,11 XLABEL= YLABEL= 7 *WHOME=WX-20*WY/30,WY-11*WY/30-30 WSIZE=20*WY/30,11*WY/30 8 * 9 *Sides of the yellow triangles: a=6 b=3 (You can change these!) 10 *s=a+b A=a+1 S=s+1 T=s+2 POLYCOEFF=100 11 * 12 *POLYGONS=N6,K1,K2,N3,K3,K4,k1,k2,k3,k4 13 *N6=1,1,A,1,A,A,1,A,13 k1=T,A,T+a,S,T,S,5 14 *K1=1,A,A,S,1,S,5 k2=T+b,1,T+s,1,T+s,b+1,5 15 *K2=1,A,A,A,A,S,5 k3=T,1,T+b,1,T,A,5 16 *N3=A,A,S,A,S,S,A,S,9 k4=T+s,b+1,T+s,S,T+a,S,5 17 *K3=A,A,A,1,S,1,5 18 *K4=A,A,S,A,S,1,5 19 * 20 *GPLOT /FRAME 21 *