Why wont all 4 subplots not work?

subplot(2,2,1)

fplot('cos(u-45)',[0 360])

subplot(2,2,2)

fplot('3*cos(2u)-2',[0 360])

subplot(2,2,3)

fplot('sin(3u)',[0 360])

subplot(2,2,4)

fplot('-2*cos(u)',[0 360])

%0 to 360 is degrees just an fyi

[Muhammad Usman Saleem]

fyi?

[Collin Kerr]

Its just an abbreviation, just scratch its not important.

Answer 1

[the cyclist]

Because "2u" is not correct MATLAB syntax for multiplication. You need "2*u".

This code runs:

u = 0:360;

subplot(2,2,1)

fplot('cos(u-45)',[0 360])

subplot(2,2,2)

fplot('3*cos(2*u)-2',[0 360])

subplot(2,2,3)

fplot('sin(3*u)',[0 360])

subplot(2,2,4)

fplot('-2*cos(u)',[0 360])