scale = 5
for (a=1; a<500; a++) r=sqrt(a)
r
scale = 10
for (a=1; a<500; a++) r=sqrt(a)
r
scale = 25
for (a=1; a<500; a++) r=sqrt(a)
r
scale = 40
for (a=1; a<500; a++) r=sqrt(a)
r
quit