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Preventing all [x,y] figures appearing when running a plot of a circle

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Jimmy Smith
Jimmy Smith ，2015-3-30
回答： Star Strider ，2015-3-30
When plotting a circle using x=rcos(theta) and y=rsin(theta), I create a linspace to obtain many values for x and y and then plot [x,y]. However, whenever I run the function, all these values appear. How do I prevent this from happening? This is what top line looks like:
function [x,y] = disc_plot
Thank you

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回答（2 个）

Youssef Khmou
Youssef Khmou 2015-3-30
Adding semi column (;) for all instructions inside the function will prevent the printing of values.
Star Strider
Star Strider 2015-3-30
I have no idea what you’re doing.
The correct syntax is:
r = 1;
theta = linspace(0, 2*pi);
x = r*cos(theta);
y = r*sin(theta);
plot(x,y)
grid % Optional
axis equal

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