What does a = b+c ~= d/e mean?

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Laura Costa Pereira Miranda
评论： Walter Roberson 2023-3-6
Hi!
I have a situation in my code like this:
a = b+c ~= d/e;
where a, b, c, d and e are real numbers, but I don't know what this expression means...
Can you help me, please?
Thank you! :D

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Voss
Voss 2023-3-4
a = b+c ~= d/e;
for scalars b, c, d, and e, is the same as
if b+c ~= d/e
a = true;
else
a = false;
end
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Walter Roberson
Walter Roberson 2023-3-6
Ran in:
By the way, in the context of if or while then an expression is considered true if the expression evaluates to something that is all non-zero (if it evaluates to contain nan then you will get an error)
if -3:2:5; disp('yep okay'); else disp('nope'); end
yep okay
if -4:2:4; disp('yep okay'); else disp('nope'); end
nope
The first one is completely non-zero but the second one contains at least one zero.

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