difference between t and t~

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Yoshi Zn 2016-11-5

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https://ww2.mathworks.cn/matlabcentral/answers/310795-difference-between-t-and-t

编辑： John D'Errico 2016-11-5

function s = powersin(x)
%POWERSIN  Power series for sin(x).
%  y = POWERSIN(x) tries to compute sin(x) from its power series.
s = 0;
t = x;
n = 1;
while s+t~= s;
   s = s + t;
   t = -x.^2/((n+1)*(n+2)).*t;
   n = n + 2;
end

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John D'Errico 2016-11-5

编辑：John D'Errico 2016-11-5

在 MATLAB Online 中打开

Um, t~ does not exist in MATLAB. It is invalid syntax on its own. In fact, the characters "t~" only appear in your code in one place, in a test. There, the operator is ~= so the ~ is actually part of a test for inequality. It is not a separate operator applied to t in any way.