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The harmonic mean

Calculator based on the entered numbers separated by commas calculate the harmonic mean.        

Long description



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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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Interest Calculator own (contractual)

The calculator calculates the amount of interest your / contract on the basis of the facts and the required payment date and the amount and percentage rate (annual, monthly, daily).
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Number of square-triangle (square triangular number)

Number of square-triangle has the properties of a square and a triangular number.          
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Calculator Body Surface BSA (Body Surface Area)

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The calculator calculates the BSA (Body Surface Area) by the formula Mosteller and Dubois.