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Keystone field

The calculator calculates the trapezoid box.          


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Weighted average ratings

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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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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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Insulation of wall

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Calculator allows you to calculate the amount of insulation panels needed to cover the walls of the building using the "light wet" or "dry light" methods.
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Calculator of days

The calculator allows you to search on the week after the date.
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Arabic numbers Converter - Roman

Calculator converts numbers to roman Arabic or Roman to Arabic vice versa. The maximum value that the calculator correctly parse the number 3999.              
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Calculator drink alcohol content

The calculator calculates the approximate alcoholic drink prepared on the basis of designs by Dave Miller, George Fixa or Jean De Clerck.