Chapter 4: Programming in Matlab - College of the Redwoods

Section 4.2 Control Structures in Matlab 329
primes=2;
for m=3:100
if any(mod(m,primes)==0)
continue
else
primes=[primes,m];
end
end
We create a format of 5 fields, each of width 5, then fprintf the vector primes
using this format.
fmt=’%5d %5d %5d %5d %5d\n’;
The resulting list of primes is nicely formatted in 5 columns.
2 3 5 7 11
13 17 19 23 29
31 37 41 43 47
53 59 61 67 71
73 79 83 89 97
11. We open a figure window and set a lighter background color of gray.
fig=figure;
set(fig,’Color’,[0.95,0.95,0.95])
We draw a circle of radius one, increase its line width, change its color to
dark red, set the axis equal, then turn the axes off.
t=linspace(0,2*pi,200);
x=cos(t);
y=sin(t);
line(x,y,’LineWidth’,2,’Color’,[0.625,0,0])
axis equal
axis off