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Math

Field parabola

The calculator calculates the surface area of ​​the parabola with the given base width and length of the perpendicular [see calculator squareness]. The result is given as the user input unit square.    


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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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Building

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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Financial

ROCE - an indicator of the efficiency of investment

The calculator calculates ROCE on the basis of these pre-tax profits, total capital and current liabilities ROCE (called Return On Capital Employed) - an indicator of the efficiency and profitability of the investment, which is the capital of the company involved.            
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Verifiers

Verification of the REGON number in Poland

Verifier allows you to validate entered REGON number
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Financial

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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Medical

Replenishing fluids - FFP (fresh frozen plasma)

Calculator based on the entered weight calculates the amount of fresh frozen plasma for transfusion in ml / hour due to the loss of fluids (sweating, bleeding, and other pathological processes).