Glossary


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P

Parabola

Parabola is a type of conic section curve, any point of which is equally distant from a fixed focus point and a fixed straight line. 


Periodic function

Periodic function is a function that repeats its values in regular intervals or periods, such as the trigonometric functions of sine, cosine, tangent, etc. 


Pi (π)

Pi (π) is the ratio of a circumference of a circle to its diameter, an irrational (and transcendental) number approximately equal to 3.141593... 


Plane

Plane is a flat two-dimensional surface (physical or theoretical) with infinite width and length, zero thickness and zero curvature.


Polynomial

Polynomial is an algebraic expression or equation with more than one term, constructed from variables and constants using only the operations of addition, subtraction, multiplication and non-negative whole-number exponents. 


Prime numbers

Prime numbers are integers greater than 1 which are only divisible by themselves and 1.