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Diffstat (limited to 'usr.bin/learn/lib/eqn/L2.1f')
| -rw-r--r-- | usr.bin/learn/lib/eqn/L2.1f | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/usr.bin/learn/lib/eqn/L2.1f b/usr.bin/learn/lib/eqn/L2.1f new file mode 100644 index 00000000000..70acf0e2886 --- /dev/null +++ b/usr.bin/learn/lib/eqn/L2.1f @@ -0,0 +1,46 @@ +#once #create message +.ND +.LP +One of the most common problems in using neqn is forgetting +to leave spaces or tildes around "magic" words like "pi" +or "int" or "sum". The result is that the magic words +cease to be magic, and just look like ordinary strings +of letters. + +In the file "Example", there are several such errors. +Find them, and fix them so the output looks +like this, then type "ready". +.pl 1 +#once #create Ref +.LP +.EQ +sum ~=~ pi ~+~1 +.EN +.EQ +a~=~ pi (x) +.EN +.EQ +alpha ~=~ beta ~+~ gamma ~+~ delta +.EN +.pl 1 +#once #create Example +.LP +.EQ +sum=pi+1 +.EN +.EQ +a=pi(x) +.EN +.EQ +alpha=beta+gamma+delta +.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 +3.1a 10 |