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Verifiers
Verification of the REGON number in Poland
Verifier allows you to validate entered REGON number
Long description
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Verification ISBN preview
Jak sprawdzić numer ISBN?
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Jak zweryfikować numer ISBN?
Calculator allows you to verify the ISBN number entered.
61897
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.
51744
Verifiers
Verifier numbers EAN-13 preview
Verifier numbers EAN-13
Calculator allows you to verify the number entered EAN-13.
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Math
Multiplication table
Multiplication table 20 × 20 gives the opportunity to multiply their arbitrary natural numbers (1-20).
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Building
Calculator floor panels
Calculator based on the dimensions of the area to put the panels and occupancy data on number of panels in one package, calculate how much you have to buy packages of panels to cover the entire room.
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Trigonometric functions calculator
Calculator by entering an angle in degrees or radians calculated values of the basic trigonometric functions.