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Roots of a quadratic equation

Calculator based on the entered coefficients calculated roots of a quadratic equation.              


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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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Parallel connection of resistors

The calculator calculates the equivalent resistance of two resistors connected in parallel.            
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Verification ISBN preview

Jak sprawdzić numer ISBN?
Jak zweryfikować numer ISBN?
Calculator allows you to verify the ISBN number entered.
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Valuation of capital assets in the form of CAPM CML

CAPM calculator in the form of CML calculates the expected return of the so-called. efficient portfolio (located on the Markowitz efficient frontier portfolios).              
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Whether a number is prime

Checks the user number is a prime number.
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Calculator carat weight

Calculator calculates the weight of the ore from grams to carats, points, kilograms, milligrams and ounces.