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Keystone field

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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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Friis transmission equation

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Calculator average revenue per employee in the company

Calculator on the basis of the specified amount paid salaries and number of employees, calculates the average annual and          
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The range of the volume distribution of erythrocytes

Calculator by entering the standard deviation of the red blood cells and mean corpuscular volume calculated volume distribution span of erythrocytes. http://pl.wikipedia.org/wiki/Rozpi%C4%99to%C5%9B%C4%87_rozk%C5%82adu_obj%C4%99to%C5%9Bci_erytrocyt%C3%B3w              
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The energy stored in the capacitor

Calculator in supply capacitor, the capacitance and load resistance calculates the energy stored in the capacitor and the time constant of the RC circuit.                
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Calculator prothrombin time (INR)

Calculator to the data calculated INR international normalized ratio. http://en.wikipedia.org/wiki/Prothrombin_time