Math

Field and volume of a sphere

Calculator by entering the radius of the sphere is calculated its surface and volume.

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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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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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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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Math

Examine the variability of the quadratic function

Calculator examines the variability of the course of a quadratic function in the field of real numbers.

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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.

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Physical

Ohm's Law

The calculator calculates the resistance in the circuit in ohms. To obtain the missing value, type two, you already know and can be used to perform the calculations.