Trigonometric Functions

graphsize 500,350

hip ={0,0,60,0,60,3,0,3,0,0}

fastgraphics

for n = 0 to pi*2 step .01

color black

circle 70,70,62

color white

circle 70,70,58

color black

stamp 70,70,1,-n,hip

rect 140,70,400,3

rect 140,250,400,3

color red

if cos(n)>0 then rect 70,70,60*cos(n),3

if cos(n)<0 then rect 70-60*cos(n+pi),70,60*cos(n+pi),3

color blue

if sin(n)>0 then stamp 70+cos(n)*60,70,sin(n),-pi/2,hip

if sin(n)<0 then stamp 70+cos(n)*60,70,sin(pi+n),pi/2,hip

color blue

circle n*50+140,50*sin(n+pi)+70,2

color red

circle n*50+140,50*cos(n+pi)+250,2

refresh

next n