kill(all)$

van=facebook.com/LearningCalculus$

dtr(theta):=%pi/180*theta$

Log(a,x):=log(x)/log(a)$

x:product(cos(dtr(1*i)),i,1,89)$
y:product(cos(dtr(2*i)),i,1,43)$

float(x);

float(y);

round(2/7*Log(2,y/x));