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The formula that describes how the time perceived by an object relative to a plane of reference becomes longer as it approaches the speed of light relative to the same plane of reference.
The ratio of any circle's diameter to its circumference. There are some who wish to replace its use with Tau, the ratio of any circle's radius to its circumference, apparently because it makes mathematics simpler.
The number two raised to any integer, or the series thereof. The sum of powers of two is the most minimalistic way to express any number, therefore it is used widely in computer engineering.
A set of equations used in physics to represent the motion of objects and to predict them in ideal conditions. These derive from more simple equations but it would be easier to just memorize them.
Starting from 0 and 1, adding the previous two numbers in the sequence to get the next term in the sequence. The limit of the ratio of the terms is the Golden Ratio.
The more general form of the Pythagorean Theorem. The square of the length of the hypotenuse is equal to the sum of the squares of the legs minus twice the product of the legs and the cosine of the angle opposite to the hypotenuse.
A definitive way to finding missing measurements of angles or sides of a triangle. The ratio of the length of a side to the sine of the angle opposite to it is always equal for any given side or angle of the triangle.
The general formula to finding the area of any triangle without knowing either base or height. A useful formula because there are no quantities that are really unknown needed for it.
