The pen line width is specified in PostScript units with pen linewidth (real). The default line width is 0.5 bp; this value may be changed with defaultpen (pen).

Asymptote is a powerful descriptive vector graphics language that provides a natural coordinate-based framework for technical drawing. Labels and equations are typeset with LaTeX, the de-facto standard for typesetting mathematics.

In analytic geometry, an asymptote (/ ˈæsɪmptoʊt /) of a curve is a line such that the distance between the curve and the line approaches zero as one or both of the x or y coordinates tends to infinity.

To draw a dot, simply draw a path containing a single point. The dot command defined in the module plain draws a dot having a diameter equal to an explicit pen line width or the default line width magnified by dotfactor (6 by default), using the …

An asymptote is a line that a curve approaches, as it heads towards infinity: There are three types: horizontal, vertical and oblique: The direction can also be negative: The curve can approach from any side (such as from above or below for a horizontal asymptote), or may actually cross over (possibly many times), and even move away and back again.

Asymptote is a primarily coordinate-based graphics language. Each point is a pair where is the -coordinate and is the -coordinate. However, there are many ways to choose a Cartesian coordinate system for the plane; one must pick the placement of origin and …

Feb 7, 2016 · To have the asymptote at x=π, simply replace {axis cs:-1,0} with {axis cs:pi,0}. Also, see section 4.17.1 of the pgfplots manual for more details about the coordinate systems.

Also check out the AoPS Asymptote Quick Start Video. For each of the following, we have put a blue dot at the origin in order to indicate relative location of the output on the coordinate plane. In other words, assume that before each of the examples below is the command.

Asymptote has four basic drawing commands: draw, fill, clip, and label. The most important of these is draw. The function draw can take many arguments. The following is the structure of a draw command, where anything with = denotes the default value: void draw(picture pic=currentpicture, Label L="", path g, align align=NoAlign, pen p=currentpen,

It starts with choosing the output format, showing simple commands for printing text, and explaining how key=value arguments work in Asymptote. It continues with easy two-dimensional drawings, explaining how to adjust image size and draw lines, add arrowheads, draw curved paths, and add markers.