Calculation of percentages
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Did you know ? The main branches of mathematics arose from the need to make calculations for business purposes, measure land and predict astronomical events. These three needs roughly correspond to the division of mathematics into the study of structure, space, and change.
Calculation of percentages
Percentage increase
Percentage change
Direct proportion
Indirect proportionality
Share in percentage
Profit from interest
Price without VAT
Price with VAT
Trade margin
Surcharge
Discount in percentage
Geometric calculations
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Did you know ? Geometry was one of the first disciplines of mathematics ever, which is due to its possibilities of immediate practical application. It is also the first discipline that was built on the axiomatic basis elaborated by Euclid. The Greeks were interested in many questions about constructions with rulers and compasses. However, humanity had to wait one millennium for another significant progress in geometry.
Center of the triangle
Angles of a triangle
Polygon
Cube
Cylinder
Ellipsoid
Pyramid
Sphere
Sphere segment
Block
Cone
Circular segment
Physics calculations
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Did you know ? Erwin Schrödinger (1887-1961) - Austrian physicist who created the Schrödinger equation, which is the basis of quantum mechanics and enabled the development of quantum theory.
Newton's law of motion
Work done by a force
Kinetic energy
Gravitational field
Conservation of momentum
Newton's second law
Oscilating object
Law of Gravity
Snell's law of refraction
Electric potential
Ohm's law
Coulomb's law
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