Math Calculator from Mathway will evaluate various math problems from basic arithmetic to advanced trigonometric expressions.

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Returns the smallest (closest to negative infinity) value that is not less than the argument and is equal to a mathematical integer. The constant π (3.14159265...) Note: for more digits of …

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This is a free online math calculator together with a variety of other free math calculators that compute standard deviation, percentage, fractions, and more.

A beautiful, free online scientific calculator with advanced features for evaluating percentages, fractions, exponential functions, logarithms, trigonometry, statistics, and more.