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Is the phrase is a palindrome

Calculator checks to see if the specified expression is a palindrome. Palindrome - sounding words as read from left to right and from right to left.    


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Verification ISBN preview

Jak sprawdzić numer ISBN?
Jak zweryfikować numer ISBN?
Calculator allows you to verify the ISBN number entered.
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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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Verifier numbers EAN-13 preview

 Verifier numbers EAN-13 Calculator allows you to verify the number entered EAN-13.          
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Calculation fields of plane figures

Jak obliczyć pole figury płaskiej?
Jak obliczyć pole kwadratu?
Jak obliczyć pole prostokąta?
Jak obliczyć pole trójkąta?
Jak obliczyć pole trapezu?
Jak obliczyć pole koła?
Calculator helps you calculate the area of ​​the selected shape.                              
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Rainwater tank

The calculator calculates the amount of collected rainwater from the roof of the given dimensions. Long description      
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Raw materials for the construction of modular suspended ceilings - covered grill, removable plates

Calculator allows you to calculate the quantity of materials for the construction of modular ceilings.    
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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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Calculate how much you drink pure ethanol

On the basis of the data entered, the amount of drink and the percentage of alcohol content calculator calculates pure ethyl alcohol that we consume.