Manual

182 Geometry
distanceatraw
Works the same as distanceat, but without the label.
perimeterat
Used in Symbolic view. Displays the perimeter of a polygon
or circle. The measure is displayed, with a label, at the given
point in Plot view.
perimeterat(polygon, point) or
perimeterat(circle, point)
Example:
perimeterat(circle(x^2+y^2=1), point(-4,4))
displays “pcircle(x^2+y^2=1)= 2*π” at point (-4, 4)
perimeteratraw
Works the same as perimeterat, but without the label.
slopeat
Used in Symbolic view. Displays the slope of a straight object
(segment, line, etc.). The measure is displayed, with a label,
at the given point in Plot view.
slopeat(object, point)
Example:
slopeat(line(point(0,0), point(2,3)),
point(-8,8)) displays “sline(point(0,0),
point(2,3))=3/2” at point (–8, 8)
slopeatraw
Works the same as slopeat, but without the label.
Numeric view: Cmds menu
Measure
abscissa
Returns the x coordinate of a point or the x length of a vector.
abscissa(point) or abscissa(vector)
Example:
abscissa(GA) returns the x-coordinate of the point A.