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Circumference of an ellipse

The calculator calculates the circumference of an ellipse for a given length of the axis passing through it.    

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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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Calculator drink alcohol content

The calculator calculates the approximate alcoholic drink prepared on the basis of designs by Dave Miller, George Fixa or Jean De Clerck.        
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Prolongation fee calculator

Calculates the amount of prolongation fee, based on the terms to defer payment and the amount of arrears. We assume that the interest rate is 7.25% (from 10.05.2012). Prolongation fee - the fee paid by the taxpayers, which, by virtue of the decision of the tax deferred or tax payment deadline laid on installment payment of the tax or tax arrears and interest on arrears     Enter the amount of \ u0119 in the \ u0142otych            
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Insulation of wall

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Calculator allows you to calculate the amount of insulation panels needed to cover the walls of the building using the "light wet" or "dry light" methods.
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Calculator VAT refund for building materials

The calculator calculates the amount of VAT that can be refunded in respect of incurred expenses associated with the purchase of construction materials.