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Field and circumference of a circle

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The calculator based on the specified radius of the area and perimeter of a circle.          


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Conversion between number bases

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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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Calculator horsepower - power converter of kilowatts (kW)

Jak obliczyć konie mechaniczne?
Calculator calculates the stated amount of kilowatts to horsepower, taking into account effectiveness.