Math

Field and circumference of a circle

Jak obliczyć pole i obwód koła?

The calculator based on the specified radius of the area and perimeter of a circle.

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Weighted average ratings

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

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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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Verifiers

Verification of the ISSN

Calculator allows you to verify the number entered ISSN (International Standard Serial Number serial publication). FAQ: How ISSN number?

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Financial

Excise tax refund calculator in Poland

Calculator based on the specified value of the car, paid tax engine calculates the amount of refund of excise duty.

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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.

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Arabic numbers Converter - Roman

Calculator converts numbers to roman Arabic or Roman to Arabic vice versa. The maximum value that the calculator correctly parse the number 3999.

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Generators

Pseudo-random number generator without repetition

Calculator generates random numbers without repetition from 0 to n-1.