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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

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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Trigonometric functions calculator

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

Calculator allows you to verify the number entered ISMN (International Standard Serial Number Printing music).      
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Acute respiratory acidosis - the level of carbonic acid

The calculator calculates the change in the amount of carbonic acid in the body caused by impaired ability to excrete carbon dioxide through the respiratory system - an illness called acute respiratory acidosis.        
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Calculator cerebral blood flow (Cerebral Blood Flow)

Associated to the data calculated how much blood supply to the brain in one minute.                  
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Calculate the cost of electricity consumption device

The calculator is designed to calculate the cost of using the selected appliance. Only devices running without interruption.