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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1276649

Math

Weighted average ratings

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

275780

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.

131854

Math

Trigonometric functions calculator

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

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15235

Legal

Legal calculator

Calculates the effective date of the act, published in the official journal.

1664196

Life

Rainwater tank

The calculator calculates the amount of collected rainwater from the roof of the given dimensions. Long description

63420

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.

322407

Financial

ROCE - an indicator of the efficiency of investment

The calculator calculates ROCE on the basis of these pre-tax profits, total capital and current liabilities ROCE (called Return On Capital Employed) - an indicator of the efficiency and profitability of the investment, which is the capital of the company involved.

16122

Medical

Calculator cerebral blood flow (Cerebral Blood Flow)

Associated to the data calculated how much blood supply to the brain in one minute.