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plot y(i)

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mouna
mouna 2011-5-13
[EDIT: 20110513 13:39 CDT - reformat - WDR]
hi,
i have this sum:
for i=2:200
y=y+i;
how i can use plot to trace y=f(i)
thanks in advance

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回答（1 个）

Walter Roberson
Walter Roberson 2011-5-13
y = cumsum(2:200);
plot(y)
Or, using the for loop
x = 2:200;
numx = length(x);
y = zeros(numx,1);
ty = 0;
for i = 1:numx
ty = ty + x(i);
y(i) = ty;
end
plot(y)
  6 个评论
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Jan
Jan 2011-5-17
plot(y1); hold('on'); plot(y2); plot(y3)
Walter Roberson
Walter Roberson 2011-5-17
Or,
plot(x,y1,x,y2,x,y3)

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