This example demonstrates the use of the previous packet. It draws a triangle, annotating its points and sides with names. Note that the coordinates of <#8877#>a<#8877#>, <#8878#>b<#8878#> and <#8879#>c<#8879#> should be chosen to fit the screen of the particular computer (see A.7).
The resulting picture looks like:
(315,160)<#8938#>
(010,010)<#8923#>(1,0)<#8882#>140<#8882#><#8923#>
(150,010)<#8924#>(0,1)<#8883#>140<#8883#><#8924#>
(010,010)<#8925#>(1,1)<#8884#>140<#8884#><#8925#>