Math

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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Math

Weighted average ratings

The calculator calculates the weighted average of the ratings of the following items.

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Math

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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Math

Trigonometric functions calculator

Calculator by entering an angle in degrees or radians calculated values of the basic trigonometric functions.

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Life

Calculator spending on cigarettes

Calculator based on the price quoted for the package and the amount consumed per month package, gives the annual cost of smoking cigarettes.

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Financial

Calculator global automotive in Poland

The calculator calculates the amount of the lump sum if you use a car for business use of vehicles that are not owned by the employer.

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Savings

LPG Calculator - Cost-effectiveness of the gas system in the car

The calculator calculates the savings resulting from the installation of the system in the car LPG gas system.

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Medical

Oxygenation index calculator

Calculator to the data calculated oxygenation index and provides the basis for health information. Oxygenation index (PaO2/FiO2) - the ratio of partial pressure of oxygen in arterial blood and the content of inspired oxygen (oxygen content represented in decimal form). Used in the assessment of respiratory function of the human body.

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Verifiers

Verification of the ISSN

Calculator allows you to verify the number entered ISSN (International Standard Serial Number serial publication). FAQ: How ISSN number?