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How to round a number to n decimal places in Java
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How to avoid floating point precision errors with floats or doubles in Java?
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Starting digits of $2^n$.
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Round number up to the nearest multiple of 3
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Can 0.99999999999 be rounded to 1.0 when multiplying?
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What is the best practice to make division return double in C#
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How do I round a number in JavaScript?
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How can I form a word like "quadruple" for any number I want?
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Get the decimal part from a double
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Round double to 3 points decimal
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Truncate Two decimal places without rounding
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What is JavaScript's highest integer value that a number can go to without losing precision?
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How to round up the result of integer division?
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How to typeset large numbers
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How to calculate last four digits of $2^{2017}$?
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Adding two numbers to make a two digit number
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Large numbers erroneously rounded in JavaScript