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how to create function handle for conditional sine wave

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Romio
Romio 2018-8-31
编辑： Stephen23 2018-8-31
I want to create function handle that satisfies the following discrete sinusoid
n = -10:1:10;
x = sin(3*pi*n);
x(n<0) = 0 ;
x(n>5) = 0 ;
stem(n,x)
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Romio
Romio 2018-8-31
my go was
x = @(t) sin(3*pi*n)
However, I was not able to include the given conditions, i.e. x(n<0) = 0 and x(n>5) = 0 in the fuction handle
Stephen23
Stephen23 2018-8-31
编辑：Stephen23 2018-8-31
@Romio: in your question you use x for a numeric vector, but in your comment you use x for a function handle. This is confusing.

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回答（1 个）

Stephen23
Stephen23 2018-8-31
编辑：Stephen23 2018-8-31
fun = @(t) sin(3*pi*n) .* (n>=0 & n<=5);

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