17632
Verifiers
NIP correctness in Poland
Jak sprawdzić poprawność numeru NIP?
Verifier allows you to validate the tax identification number entered
Tax identification number is a code used to identify taxpayers in Poland, which consists of 10 digits.
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75146
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.
62108
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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Legal
Legal calculator
Calculates the effective date of the act, published in the official journal.
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Math
Calculate the factorial using Stirling's formula.
The calculator calculates the approximate value of the motor using Stirling's formula
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Medical
The total amount of neutrophil count (ANC)
Calculator on the basis of these data calculates the ANC - the total number of neutrophils. http://pl.wikipedia.org/wiki/Neutrofil
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Friis transmission equation
The calculator calculates the power at which the antenna receives the signal output from the second antenna of the power and distance greater than a single wavelength. The higher the frequency, the higher the transmission power loss from the signal transmission.
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Building
Time of the lathe
The calculator calculates the processing time and cut the lathe on the basis of the information given workpiece.