A centripetal force is a force that makes a body follow a curved path. Its direction is always orthogonal to the motion of the body and towards the fixed point of the
instantaneous centre of curvature of the path
The centroid of a triangle is the point where its medians intersect. It is also the centre of gravity of the triangle and one of the triangle's points of concurrency. It works by
constructing two medians, which intersect at the centroid
A chord of a circle is a straight line segment whose endpoints lie on the circle. The diameter, which passes through the center of the circle, is a special case of a chord.
A closed set is a set whose complement is an open set. In a topological space, a closed set can be defined as a set which contains all its limit points. In a complete metric space, a closed set is a set which is
closed under the limit operation.
In mathematics, a codomain or set of destination of a function is a set into which all of the output of the function is constrained to fall. It is the set Y in the
notation f: X → Y. (Wikipedia)
A trigonometric function whose value for the complement of an angle is equal to the value of a given trigonometric function of the angle itself the sine is the cofunction of the cosine.
The common logarithm is the logarithm with base 10. It is also known as the decadic logarithm and as the decimal logarithm, named after its base, or Briggsian logarithm, after Henry Briggs, an English mathematician who pioneered its use, as well as "standard logarithm.
A method, usually of solving quadratic equations, by which a quadratic expression, as x2 − 4x + 3, is written as the sum or difference of a perfect square and a constant, x2 − 4x + 4 + 3 − 4 = (x − 2)2 − 1,
by addition and subtraction of appropriate constant terms.
The complex conjugate of a complex number is the number with an equal real part and an imaginary part equal in magnitude but opposite in sign. For example, the complex conjugate of 3 + 4i is 3 − 4i.