= 1–9 selects the line style which will be used to grid the plot.
| void grid (lnstyle) | GRIDOPTS.C | Level 1 |
| int lnstyle | = 0 if no grid is desired.
= 1–9 selects the line style which will be used to grid the plot. |
| grid() draws lines through the tick marks using the line style of your choice. It must be called before the axis-creating routines. |