Math

Roots of a quadratic equation

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

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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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Verifiers

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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Life

Calculator - dosage of CO2 in the aquarium

Ile co2 w akwarium? Dawkowanie co2 w akwarium.

The online calculator by entering the pH and kH values to calculate the concentration of CO2 in the aquarium.

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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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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).

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Math

The center point (mid point)

The calculator calculates the coordinates of the point located exactly halfway between two preset points in the two-dimensional plane.