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Diffstat (limited to 'usr.bin/learn/lib/eqn/L9.1a')
| -rw-r--r-- | usr.bin/learn/lib/eqn/L9.1a | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/usr.bin/learn/lib/eqn/L9.1a b/usr.bin/learn/lib/eqn/L9.1a deleted file mode 100644 index 4a07a8f828e..00000000000 --- a/usr.bin/learn/lib/eqn/L9.1a +++ /dev/null @@ -1,66 +0,0 @@ -#once #create message -.ND -.tr %$ -.EQ -delim $$ -.EN -.LP -The next step is to learn about "diacriticals", which -is a big word for funny marks on symbols, like -a bar over something ($x bar$), or a tilde or hat on -something ($x tilde ,~a hat$), or perhaps a dot -or dotdot ($T dot ,~U dotdot$), or even an -underlining like $abc under$. - -These are all easy. Each funny character -has a name, and all you have to do is put the name -after the thing you want the character on. -Thus - x hat makes $x hat$ - y bar makes $y bar$ - T dot makes $T dot$ - x tilde makes $x tilde$ (notice that we spell tilde) - u dotdot makes $u dotdot$ (looks ugly on a terminal) -.br -and - i under makes $i under$. - -Except for "bar" and "under", these are almost always -attached to just a single letter. -If you want to put a bar over something longer, like -${2 pi +1} bar$, simply enclose the thing in braces: - - {2 pi +1} bar - -Modify "Example" to produce output that looks like this, -then type "ready". -.pl 1 -#once #create Ref -.EQ -delim $$ -.EN -.LP -Let $x bar$, $y bar$, and $z bar$ be the components of $pi bar$. -Let ${alpha +1} bar$ be the mean value of $alpha hat$. -.pl 1 -#once #create Example -.EQ -delim $$ -.EN -.LP -Let x bar, y bar, and z bar be the components of pi bar. -Let alpha +1 bar be the mean value of alpha hat. -.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 to set delimiters at the beginning, -and get the spaces right around the dollar signs. -#log -#next -9.1b 10 -9.2a 5 |