Math

Number of triangular

In math calculator calculate triangular number is a number that can be represented as the sum of consecutive integers starting.

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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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Calendar

Calculator seniority in Poland

Calculator to calculate the total length of service after the date of employment or dismissal.

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Building

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.

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Math

Roots of a quadratic equation

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

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Physical

Resistivity and conductivity

The calculator calculates the resistivity and conductivity of the material from the resistance, cross-sectional area and the length of the element at 20 ° C.

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Building

Insulation of wall

Jak policzyć izolację ścian?

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.