Calculation of percentages
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Did you know ? The rules that mathematical logic derives from the research of thinking are analogous to the rules of mathematical, especially algebraic, operations. The task of mathematical logic is actually the same as the task of traditional logic, namely to develop procedures by means of which we could verify the correctness of our logical conclusions, or in other words, by means of which we could distinguish valid conclusions from invalid ones.
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 ? The oldest signs of geometry can be traced back to ancient Egypt. The Rind Papyrus describes a strikingly accurate method of calculating an approximation of Ludolf's number, with an error of less than one hundredth. The Rind papyrus also describes one of the first attempts at squaring the circle, as well as a certain cotangent analogy.
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 ? Physics is a natural science that deals with the study of nature and its laws using mathematical models and experiments. Physics deals with various fields such as mechanics, electromagnetism, optics, thermodynamics, quantum mechanics, cosmology and many more.