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Multiplication table

Multiplication table 20 × 20 gives the opportunity to multiply their arbitrary natural numbers (1-20).


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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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ROCE - an indicator of the efficiency of investment

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How do I calculate vacation? Calculator dimension leave in Poland

jak wyliczyć urlop wypoczynkowy? jak obliczyć urlop? jak się liczy urlop wypoczynkowy?
Calculator by entering the type of secondary education and the start and end dates of employment shall calculate the chargeable period of annual leave.                  
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Generator ideal body weight according to Broca

Based on the given height and gender calculates for you the ideal body weight according to Broca.              
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Parallel connection of resistors

The calculator calculates the equivalent resistance of two resistors connected in parallel.            
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The percentage reduction in blood urea after dialysis

Calculator to the data is given as change the level of urea in the blood after hemodialysis.