sync rate 0
do
s#=rnd(2)
lock pixels
for y=1 to screen height()
For x=1 to screen width()
inc z
if s#=1 then dot x,y,sin(x)*atan(y)*20000
if s#=2 then dot x,y,sin(x)*atan(y)*20
if s#=0 then dot x,y,cos(x)*(8/sin(y))*200000
next x
next y
unlock pixels
sync
loop

sync rate 0
do
s#=rnd(3)
lock pixels
for y=1 to screen height()
For x=1 to screen width()
inc z
if s#=1 then dot x,y,sin(x)*atan(y)*2000000
if s#=2 then dot x,y,sin(x)*atan(y)*2000000
if s#=3 then dot x,y,asin(2^(x+2000000))-2000000+y
if s#=0 then dot x,y,cos(x)*(8/sin(y))*200000
next x
next y
unlock pixels
sync
loop

sync rate 0
do
s#=rnd(3)
lock pixels
for y=1 to screen height()
For x=1 to screen width()
inc z
if s#=1 then dot x,y,sin(x)*atan(y)*2000000
if s#=2 then dot x,y,sin(x)*atan(y)*2000000
if s#=3 then dot x,y,cos(x)*((3)^2*sin(y)^2)*200000
if s#=0 then dot x,y,cos(x)*(8/sin(y))*200000
next x
next y
unlock pixels
sync
loop