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Diffstat (limited to 'usr.bin/learn/lib/eqn/L5.1h')
| -rw-r--r-- | usr.bin/learn/lib/eqn/L5.1h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/usr.bin/learn/lib/eqn/L5.1h b/usr.bin/learn/lib/eqn/L5.1h new file mode 100644 index 00000000000..af14087fe1b --- /dev/null +++ b/usr.bin/learn/lib/eqn/L5.1h @@ -0,0 +1,48 @@ +#once #create message +.ND +.tr %$ +.EQ +delim $$ +.EN +.LP +One thing that you will occasionally need +is to be able to get a literal { or } in your +output, for an expression like +.EQ +{ "{" a + b "}" } over 2 +.EN +The way to do this is to place the braces +that are really to appear ______inside ______quotes, +like this: + .EQ + { "{" a + b "}" } over 2 + .EN +.br +The quotes temporarily turn off the special meaning +of the braces so that you can have them printed. + +The file "Example" has a lot of square brackets in +it. Modify them so they are all braces when they are +printed - so they look like this - then type "ready". +.pl 1 +#once #create Ref +.LP +.EQ +f"{" x sub 1 ,..., x sub n "}" ~=~ "{" x sub 1 ,..., x sub n "}" +.EN +.pl 1 +#once #create Example +.LP +.EQ +f[ x sub 1 ,..., x sub n ] ~=~ [ x sub 1 ,..., x sub n ] +.EN +.pl 1 +# +#once neqn Ref | nroff >X1 & +#once neqn message Ref | nroff -T$term %s/tinyms - +#user +neqn Example | nroff >X2 +#cmp X1 X2 +#log +#next +6.1a 10 |