Verifiers

Verifier numbers EAN-13 preview

Verifier numbers EAN-13 Calculator allows you to verify the number entered EAN-13.

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74088

Verifiers

Verification ISBN preview

Jak sprawdzić numer ISBN?
Jak zweryfikować numer ISBN?

Calculator allows you to verify the ISBN number entered.

61248

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.

38889

Verifiers

Verification of the ISSN

Calculator allows you to verify the number entered ISSN (International Standard Serial Number serial publication). FAQ: How ISSN number?

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Metal weight calculator

the calculator calculates the mass of metal parts according to the form of the product and the type of metal

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Basic equations and inequalities with absolute value

Calculator applies to the basic issues of the absolute value of the non-zero parameter "a"

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Calculator resistance resistor ( bars)

Calculator gives the resistance of the resistor based on the introduced color bars.

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Field of the cylinder and

Jak obliczyć pole walca?
Jak obliczyć objętość walca?

Calculator based on the introduced: the radius of the cylinder base and calculates the area and volume.