Slope of a line

The slope command finds the slope of a line.

slope takes one or two arguments: L, a line, a line segment, or two points determining a line.
slope(L) returns the slope of the line.

slope(line(1,2i))

or:

slope(segment(1,2i))

or:

slope(1,2i)

−2

slope(line(x-2y=3))

slope(tangent(plotfunc(sin(x)),pi/4))

or:

slope(LineTan(sin(x),pi/4))

√

The slope command has slopeat and slopeatraw versions (see Section 26.13.1).