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Mean and covariance matrix calculator

Covariance is a measure of the covariance of two variables (X and Y). The calculator calculates the average for the sample and the covariance between variables. Sets of X and Y must be the same number.      


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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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Deferred pension

Calculator to the data allows you to calculate the amount of the deferred annuity. http://financial-dictionary.thefreedictionary.com/Deferred+Annuity                  
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Your weight on other planets

Your weight on other planets Calculator us by the specified weight on Earth is given if you would weigh on other planets and the Moon and Pluto.                      
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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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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.