### secant

• n. 割线；正割
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secant (n.)
1590s, from Latin secantem (nominative secans) "a cutting," present participle of secare "to cut" (see section (n.)). First used by Danish mathematician Thomas Fincke in "Geometria Rotundi" (1583).
1. The value of the complement of the secant is called the cosecant.

2. A secant is defined as line passing through two points of the curve.

3. The pulse envelope we obtained is a hy - perbolic secant function of time.

4. This paper mainly deals with the secant method used on stiffness matrix.

5. The slope of secant drawn from the origin through the point is the average function.