I am having trouble with the syntax for computing distance formula using math and its sqrt function. Here is the equation. I tested it out and the answers are integers.
sqrt(double ((x1 - 0)^2) + double ((x2 - 0)^2))
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dustinyourface
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5Hint: the ^ operator does not do what you think it does. – Borgleader Jan 14 '16 at 02:07
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Possible duplicate of [Why is my power operator (^) not working?](http://stackoverflow.com/questions/4843304/why-is-my-power-operator-not-working) – phuclv Jan 14 '16 at 02:41
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it's for C, but similar for C++ and all other C-based languages like Java, Javascript... Google for C++ operator first before asking here – phuclv Jan 14 '16 at 02:42
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In C/C++, ^ is the operator for bitwise exclusive-or (xor). I assume what you are looking for is way to raise a number to the power of 2. For this you can use the pow function from the C standard library:
pow(double n, double exp);
Specifically,
sqrt(double (pow(x1 - 0, 2)) + double (pow(x2 - 0, 2))
Levi
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2aah I completely forgot about that. It's always the little things. – dustinyourface Jan 14 '16 at 02:27
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@LưuVĩnhPhúc The same concept still applies since the OP seems to be using the C standard library. But I have added '/C++' to my answer to keep you happy. – Levi Jan 14 '16 at 02:45
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yes, but the OP asked about C++ so you must answer for C++. In the original post you answer for C which is incorrect – phuclv Jan 14 '16 at 02:56
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@LưuVĩnhPhúc If you have any problems with my answer, do feel free to provide your own alternative. Have a nice day! :) – Levi Jan 14 '16 at 03:09