Math

Mean and covariance matrix calculator

Covariance is a measure of the covariance of two variables (X and Y). The calculator calculates the average for the sample and the covariance between variables. Sets of X and Y must be the same 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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Math

Multiplication table

Multiplication table 20 × 20 gives the opportunity to multiply their arbitrary natural numbers (1-20).

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Savings

Buying on credit or leasing

Calculator allows you to compare the costs incurred when buying a car on credit and taking it on lease.

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Health

Generator ideal body weight according to Broca

Based on the given height and gender calculates for you the ideal body weight according to Broca.

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Building

Calculator number of floor tiles and adhesive

Calculator based on the stated dimensions tiles and floor area where they will be laid tile, calculate the required amount of tiles and tile adhesive to them.

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Verifiers

Verification of the REGON number in Poland

Verifier allows you to validate entered REGON number