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The center point (mid point)

The calculator calculates the coordinates of the point located exactly halfway between two preset points in the two-dimensional plane.          


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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 to the data calculated threshold of human breathing, the oxygen absorption by the body. This is one of the basic indicators of human performance. http://pl.wikipedia.org/wiki/Pu% C5% 82ap_tlenowy