diff options
Diffstat (limited to 'usr.bin/learn/lib/eqn/L11.1f')
| -rw-r--r-- | usr.bin/learn/lib/eqn/L11.1f | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/usr.bin/learn/lib/eqn/L11.1f b/usr.bin/learn/lib/eqn/L11.1f deleted file mode 100644 index 0a726f4babf..00000000000 --- a/usr.bin/learn/lib/eqn/L11.1f +++ /dev/null @@ -1,48 +0,0 @@ -#once #create message -.ND -.tr %$ -.EQ -delim $$ -.EN -.LP -The way to handle the problem of a subscript or superscript -on nothing is to provide something to hang the subscript -or superscript on. -One possibility is to use a tilde, but that has a real width, -and might spoil the appearance of the output. -The best solution is this: - - "" sup 1 ... - -The expression "" has no width, so everything works -out properly. The use of "" may seem a bit unnatural -but it's an idiom that you get used to quite quickly. - -For practice, modify "Example" so it produces -output that looks like this, -then type "ready". -.pl 1 -#once #create Ref -.LP -.EQ -"" sup + H sub 2 ~ "<=>" ~ "" sup - H ~+~ "" sup + H -.EN -.pl 1 -#once #create Example -.LP -.EQ -xxx -.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 -#fail -Don't forget spaces; don't forget to quote -things when needed (including <=>). -#log -#next -11.1g 10 |