matlab help

[Gibson486]

I have an assignment to plot a cirlce in matlab using loops, one using "for", the other using "while".

First, i know i have to use sin. However, i am confused trying to figure out what to use the trig function with. ALso, when making the loop, I know i need to tell matlab to stop at a certain point, therefore, do i need to to assign some sort of threshold? i guess we do this by saying

For x= sin(a)
0<a<pi/2
plot(x)

for x=sin(b)
pi/2<b<pi
plot(x)

for x=sin(c)
pi<c<3*pi/4
plot(x)

for x=sin(d)
3*pi/4<d<2*pi
plot(x)

end

do i atleast have the right idea?

 

[kyu614]

You dont need four for statements, and you the condition statement needs to follow the for like
for condition
do this
end

also, for your plot, i think you will need to have two coordinates. You can type "help for" and that should give you some help with the for function.
Hope this helps you get a lilttle farther along.

 

[thornc]

Gibson...
Try posting at the MathWorks sponsored newsgroup
comp.soft-sys.matlab

You'll find lots of helpfull people there... and they use matlab more often than most of the members here!