math Archives - Page 4 of 8

How does C compute sin() and other math functions?

I’ve been poring through .NET disassemblies and the GCC source code, but can’t seem to find anywhere the actual implementation of sin() and ...

May 18, 2022
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Why is division in Ruby returning an integer instead of decimal value?

For example: 9 / 5 #=> 1 but I expected 1.8. How can I get the correct decimal (non-integer) result? Why is it ...

May 17, 2022
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How can I remove the decimal part from JavaScript number?

I have the results of a division and I wish to discard the decimal portion of the resultant number. How can I do ...

May 16, 2022
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Why can’t decimal numbers be represented exactly in binary?

There have been several questions posted to SO about floating-point representation. For example, the decimal number 0.1 doesn’t have an exact binary representation, ...

May 16, 2022
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How to determine if a list of polygon points are in clockwise order?

Having a list of points, how do I find if they are in clockwise order? For example: point[0] = (5,0) point...

May 16, 2022
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How to determine if a point is in a 2D triangle? [closed]

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question ...

May 16, 2022
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Fast ceiling of an integer division in C / C++

Given integer values x and y, C and C++ both return as the quotient q = x/y the floor of the floating point ...

May 15, 2022
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JavaScript % (modulo) gives a negative result for negative numbers

According to Google Calculator (-13) % 64 is 51. According to Javascript (see this JSBin) it is -13. How do I fix this? ...

May 13, 2022
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How can I divide two integers to get a double?

How do I divide two integers to get a double? 8 Answers 8

May 13, 2022
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Convert a number range to another range, maintaining ratio

I’m trying to convert one range of numbers to another, maintaining ratio. Maths is not my strong point. I have an image file ...

May 12, 2022
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