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Whether a number is prime

Checks the user number is a prime number.


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Weighted average ratings

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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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Trigonometric functions calculator

Calculator by entering an angle in degrees or radians calculated values ​​of the basic trigonometric functions.
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Calculator allows the conversion of fuel combustion km / h on U.S. MPG (Miles per Gallon) and vice versa.                      
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Rainwater tank

The calculator calculates the amount of collected rainwater from the roof of the given dimensions. Long description      
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Waterproofing balconies [IZOHAN]

Calculator allows to determine the price of IZOHAN materials needed to complete the waterproofing of the terrace of the given dimensions.
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Centroid of the triangle

The calculator calculates the centroid of the triangle. Centroid is the point through which the median of the three triangle. It divides each median in the ratio of 2:1.