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for loops and the if statement

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Brenden
Brenden 2011-7-4
回答： sourav malla 2019-6-26
This is a beginner question im sure i just dont understand why is it that i have to use 2 equal signs in the if statement?
for n=0:10;
fprintf('n=%d\n',n);
if n==0
i cannot use n=0 ??
thanks BN

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采纳的回答

bym
bym 2011-7-4
n=0
Is an assignment; it assigns the value 0 to the variable n
n==0
is a logical test; it tests whether the variable n is equal to 0 and returns a boolean (true/false)

更多回答（1 个）

sourav malla
sourav malla 2019-6-26
If you are assigning something inside the loop then its:
z=0;
And if you are checking a statement for true or false then:
z==0;
basically it will return logical 1 or 0 based upon 'true' or 'false' in matlab.

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