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Conversion between number bases

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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 specified key encrypts the text using the Caesar cipher. Are accepted only letters, other characters are ignored.        
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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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PV Calculator helps us to calculate the current value of the investment or PV (ang.present value). PV Calculator calculates how much you need today, in the future, get the specified value after a certain number of years and accrue interest payable under the assumption that they will be capitalized (added to the principal) at a specified interval.                          
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Statistical calculator

Calculator allows to determine the basic statistical parameters such as standard deviation, arithmetic mean, variance, and median for the values.
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Return on investment over the

Calculator allows you to calculate the return on equity of investment in any financial instrument in relation to the value obtained at the beginning and end of the period.