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Verifiers
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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Verifiers
Verification ISBN preview
Jak sprawdzić numer ISBN?
Jak zweryfikować 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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Verifiers
Verifier numbers EAN-13 preview
Verifier numbers EAN-13
Calculator allows you to verify the number entered EAN-13.
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Life
Map Scale Converter
Calculator allows to determine the actual distance corresponding to the distance on the map with the specified scale. If the map at 1:500,000 scale the input field, enter the value 500000.
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NIP correctness in Poland
Jak sprawdzić poprawność numeru NIP?
Verifier allows you to validate the tax identification number entered
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Financial
Cash liquidity ratio
Calculator based on the introduced: the financial resources and current liabilities are calculated ratio of cash. CES - tells you how much current liabilities can be settled without delay, if they become due and payable at that time.
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Chemical
Calculator enthalpy
Enthalpy calculator is used to calculate the heat transfer during the process kwazistatycznego occurring in a closed thermodynamic system under constant pressure (isobaric process).