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Math

Field parabola

The calculator calculates the surface area of ​​the parabola with the given base width and length of the perpendicular [see calculator squareness]. The result is given as the user input unit square.    


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Weighted average ratings

The calculator calculates the weighted average of the ratings of the following items.              
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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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Life

Rainwater tank

The calculator calculates the amount of collected rainwater from the roof of the given dimensions. Long description      
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Verifiers

Verification of the social security number in Poland

It presents data deriving from the unique social security number, such as date of birth, sex, serial number and check its correctness.
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Building

Single-layer wall insulation

Calculator allows you to calculate izolacyjość single-layer wall.          
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Building

Amount of paint necessary to paint the room

Calculator to estimate the amount of paint needed to paint a room by painting a single and double.                  
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Health

Maximum Heart Rate

The calculator allows you to calculate the index of maximum heart rate (MHR) for your body