∑ Math
Basic Calculator
Add, subtract, multiply, and divide two numbers.
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Disclaimer: Results are estimates for educational purposes and are not a substitute for professional financial, medical, legal, or tax advice. Read more
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∑ Math
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Common scientific operations: sin, cos, tan, log, ln, sqrt, and more.
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Quick percentage of a number — useful for tips, discounts, and taxes.
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Simplify fractions and compute sum, difference, product, or quotient.
∑ MathPercentage Change
Calculate percent increase or decrease between two values.
∑ MathPercentage Of
Find what percent one number is of another, or X% of Y.
∑ MathAverage / Mean / Median / Mode
Compute mean, median, and mode from a list of numbers.