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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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Net return on sales (ROS)

Calculator based on the values ​​entered and net profit calculated return on sales ROS. ROS announces net income (after tax), attributable to every penny of products, goods and services.            
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Calculator to the data calculates the anion gap. http://pl.wikipedia.org/wiki/Luka_anionowa                  
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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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Metal weight calculator

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