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Math

# Area of a rhombus

The calculator can calculate the area of a ​​rhombus.

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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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## Trigonometric functions calculator

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

## Calculator burn calories (kcal). How many calories you burn a day?

Ile kalorii spalamy? Ile kalorii potrzebuję?
The calculator calculates how many calories you burn per day based on the data entered.
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## Roots of a quadratic equation

Calculator based on the entered coefficients calculated roots of a quadratic equation.
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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.
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Life

## Virtual Calculator air temperature

Calculator based on the given air temperature, dew point and barometric pressure are calculated virtual temperature. This is the temperature damages that powinnoby have dry air to its density at the same pressure is equal to the density of moist air.
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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.