Drawing lined paper

### 26.2.3 Drawing lined paper

The line_paper command draws lined paper.

- line_paper takes two mandatory arguments and two optional arguments.
  - xspacing, the spacing in the x direction.
  - θ, the angle from the horizontal to draw the lines.
  - Optionally, x=xmin..xmax, to determine how far the lines extend in the x direction (by default, the distances given in the graphic configuration page accessible from the main menu).
  - Optionally, y=ymin..ymax, to determine how far the lines extend in the y direction (by default, the distances given in the graphic configuration page accessible from the main menu).
- line_paper(xspacing,θ ⟨,x=xmin..xmax,y=ymin..ymax ⟩) draws lined paper.

#### Example

axes=0; line_paper(0.6,pi/3,display=grey)