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Number of square-triangle (square triangular number)
Number of square-triangle has the properties of a square and a triangular 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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Cost of online advertising
Calculator based on the entered values to calculate the total cost, the cost for 1,000 impressions or views of online advertising.
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Calculator index of renal failure (Renal Failure Index)
Calculator to the data: the amount of sodium in the urine, serum creatinine and urine of renal failure calculates the RFI.
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Verification of the social security number in Poland
It presents data deriving from the unique social security number, such as date of birth, sex, serial number and check its correctness.
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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
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Interest Calculator own (contractual)
The calculator calculates the amount of interest your / contract on the basis of the facts and the required payment date and the amount and percentage rate (annual, monthly, daily).