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The slope b of a line obtained using linear least squares fitting is called the regression coefficient.

The hazard function (also known as the failure rate, hazard rate, or force of mortality) h(x) is the ratio of the probability density function P(x) to the survival function ...

In general, "a" calculus is an abstract theory developed in a purely formal way. "The" calculus, more properly called analysis (or real analysis or, in older literature, ...

Let B dollars be borrowed at an interest rate of i per month, where i is the annual rate divided by 12, and assume the mortgage needs to be paid back in n months. Then the ...

A change of basis is the transformation of coordinate-based vector and operator representations in a given vector space from one vector basis representation to another.

The standard form of a line in the Cartesian plane is given by ax+by=c for real numbers a,b,c in R. This form can be derived from any of the other forms (point-slope form, ...

A transversal line is a line which intersects each of a given set of other lines. It is also called a semisecant.

A line making equal angles with the edges of a trihedron is called an isoclinal line of the trihedron.

The line bisecting a given line segment P_1P_2 can be constructed geometrically, as illustrated above.

A line that passes through the center of a circle or sphere.