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

 
TOP SCIENTISTS AND INVENTORS
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Albert Einstein

Isaac Newton

Charles Darwin

Galileo Galilei

Nikola Tesla

Marie Curie

Stephen Hawking

Richard Feynman

Johannes Kepler

Louis Pasteur

Thomas Alva Edison

Alan Turing

James Clerk Maxwell

Werner Heisenberg

Erwin Schrödinger

Blaise Pascal

Archimedes

Niels Bohr