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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Employee

Illness Calculator - Calculate sickness (illness)

jak wyliczyć chorobowe? jak obliczyć zasiłek chorobowy?

Calculator calculates sick pay during sick leave, taking into account the various reasons for absence.

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Life

Calculator child's blood group

Calculator based on blood group made of both parents, given that they are owned by the child possible blood groups.

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Verifiers

Verification of the ISSN

Calculator allows you to verify the number entered ISSN (International Standard Serial Number serial publication). FAQ: How ISSN number?

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Math

Combination of characters and numbers

Calculator allows to determine the existing combinations for the user-specified string.

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Physical

The energy stored in the capacitor

Calculator in supply capacitor, the capacitance and load resistance calculates the energy stored in the capacitor and the time constant of the RC circuit.