How to make a function defined at discrete points?
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x[n] = { 1 if n=0,
2 if n=1,
3 if n=2,
2 if n=5,
2 if n=6,
0 otherwise }
采纳的回答
Star Strider
2016-9-12
One possibility:
xn = @(n) [(n==0) (n==1) (n==2) (n==5) (n==6)]*[1; 2; 3; 2; 2];
y = xn(2)
y =
3
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