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Bookmark or Share- Scientific Calculator - Math is FunReturns 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 accuracy but less functions try the Full Precision Calculator.
- The Online Calculator | Basic CalculatorBasic Online Calculator with 10-digit keypad and 4 functions to add, subtract, multiply and divide numbers. Includes basic handheld calculator functions for square, square root, percent, sign change, Pi and memory.
- calculator.com®calculate anything, anytime, anywhere... Free online calculators for everything. Some solve problems, some satisfy curiosity and some simply for fun.
- Calculator Soup - Online CalculatorsCalculator with percentage and square root buttons. Operate calculator with a mouse, number pad, keyboard, or touch. Calculator has shortcuts for powers or exponents or their inverses, for 1/x, and repeating operations of addition, subtraction, multiplication, division and exponents. See additional instructions on the Basic Calculator page.
- Scientific Calculator - DesmosA beautiful, free online scientific calculator with advanced features for evaluating percentages, fractions, exponential functions, logarithms, trigonometry, statistics, and more.
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