Math

The sum of squares of integers from 1 to n

The calculator calculates the sum of squares of consecutive integers from one to the specified value.

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Math

Weighted average ratings

The calculator calculates the weighted average of the ratings of the following items.

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Math

Conversion between number bases

Converter allows you to convert numbers between number bases - binary (binary), trójkowym, czwórkowym, Friday, szóstkowym, siódemkowym, octal (octal), dziewiątkowym, decimal (decymalnym) jedenastkowym, dwunastkowym, trzynastkowym, czternastkowym, piętnastkowym, hexadecimal (hex). Typed characters that are not numbers and the letters A, B, C, D, E, F are ignored.

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Math

Trigonometric functions calculator

Calculator by entering an angle in degrees or radians calculated values of the basic trigonometric functions.

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Life

How far was struck by lightning

Calculator based on the specified time from seeing lightning until you hear thunder in the distance calculated discharge occurred.

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Verifiers

Verifier ISMN numbers

Calculator allows you to verify the number entered ISMN (International Standard Serial Number Printing music).

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Life

Your weight on other planets

Your weight on other planets Calculator us by the specified weight on Earth is given if you would weigh on other planets and the Moon and Pluto.

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Physical

Friis transmission equation

The calculator calculates the power at which the antenna receives the signal output from the second antenna of the power and distance greater than a single wavelength. The higher the frequency, the higher the transmission power loss from the signal transmission.

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Chemical

Law Boyle's / Mariotte

Calculator based on the values entered pressure and volume of the selected parameter is calculated using Boyle's Law states / Mariotte.