Remember to press and hold the Alt key and enter a 0 (zero) before each code; for example: if the chart shows 169 as the copyright symbol, you must enter 0169 (that is, from 0 through 255).

Symbols show important landmarks, places and areas. They are used because maps are usually too small to contain lots of writing A key is a guide ... types of map. For example, blue symbols are ...

This example specifies a plot symbol on a SYMBOL ... This list is used by the SYMBOL statement. HSIZE= and VSIZE= specify the external dimensions of the graph. Units of IN override the default PCT ...

Inequalities that use ≤ or ≥ symbols are plotted with a solid line to show that the line is included in the region. For example, this graph shows the inequality \(x \textless -1\). This can be ...