0 in a triangle that has one angle of 90°, the ratio of the hypotenuse (= the length of the side opposite the 90° angle) to the length of the side next to an angle less than 90°
1 in a triangle that has one angle of 90°, the ratio (=comparison) of the hypotenuse (= length of the side opposite the 90° angle) to the length of the side next to an angle less than 90°
Note that this line is a secant or chord of the graph of the function "f".
Therefore, the secant method may occasionally be faster in practice.
The following graph shows the function "f" in red and the last secant line in bold blue.
Why did he never mention the secant, with which he in fact operated?
Geometrically, the limit of the secant lines is the tangent line.
Continuous flight augering can be used to construct a secant piled wall which can be used as a retaining wall or as shoring during excavation.
The tangent line is a limit of secant lines just as the derivative is a limit of difference quotients.
A chord is an interval of a secant line, the portion of the line that lies within the curve.
