Where is the error in prompt function in this code?
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for i= 1:4
disp (['enter an angle in degrees']);
x = input(prompt)
y(x) = cos (x);
plot (x,y);
end
y
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Walter Roberson
2019 年 4 月 5 日
prompt is not a defined variable. Perhaps you should have used
prompt = 'enter an angle in degrees: ';
Note that your prompt talks about degrees, but cos() works in radians. cosd() works in degrees.
Your code would work (not crash) if the user happened to enter a positive integer, but what if the user happened to enter 0 or negative? y(x) when x is 0 would be a problem.
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