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Math

# Number cheerful

Checks the calculator is a large number of so-called gay (Happy Number). Number gay is a natural number is defined as follows: Calculate the sum of squares of digits of the number. Repeat this process for the next results as long as we get the number 1 or the results will be repeated. If you have received as a result of one, the original number is the number of gay. Otherwise, a number bleak.

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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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322625

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.

2421374

Building

## Calculator floor panels

Calculator based on the dimensions of the area to put the panels and occupancy data on number of panels in one package, calculate how much you have to buy packages of panels to cover the entire room.

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Math

## Number of tetrahedral

Tetrahedral numbers are the natural numbers, for which it is possible to construct a tetrahedron formnego of bullets. They are a special case of the pyramidal numbers.

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Employee

## How do I calculate vacation? Calculator dimension leave in Poland

jak wyliczyć urlop wypoczynkowy?
jak obliczyć urlop?
jak się liczy urlop wypoczynkowy?

Calculator by entering the type of secondary education and the start and end dates of employment shall calculate the chargeable period of annual leave.

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Building

## Associated ceiling material thickribs

Calculator allows you to calculate the approximate consumption of materials per 1 m2 rib ceiling with ceramic and concrete.