Operations on sets
Specifies the basic operation of the two sets
Volume of the parallelepiped
The calculator allows you to calculate the volume of the parallelepiped.
Calculator child's blood group
Calculator based on blood group made of both parents, given that they are owned by the child possible blood groups.
Verifier NRB / BBAN
Calculator allows you to verify the correctness of the entered account number.
Savings Calculator and operating costs of home heat pump DHP