projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| fd15fd37 BJ |
1 | #once #create message |
| 2 | .EQ | |
| 3 | delim $$ | |
| 4 | .EN | |
| 5 | .pl 1 | |
| 6 | .ll 55 | |
| 7 | This script is designed to teach you the "eqn" language | |
| 8 | for typing mathematics. | |
| 9 | There are two versions of the program. "eqn" is for | |
| 10 | use on the phototypesetter; "neqn" is for use on a | |
| 11 | terminal like a DASI or GSI, or a Model 37 teletype. | |
| 12 | The lessons are mostly written under the assumption | |
| 13 | that you will be using neqn on a DASI or GSI or teletype; | |
| 14 | a few things that are specific to eqn on the typesetter are | |
| 15 | left to the end. | |
| 16 | ||
| 17 | The terminal MUST be a DASI or GSI or teletype, | |
| 18 | or you will get some rather startling results | |
| 19 | from this script. | |
| 20 | ||
| 21 | To verify that everything is working, this message | |
| 22 | should come out with subscripts, superscripts, Greek | |
| 23 | letters and so on. If it doesn't, we're in | |
| 24 | trouble. | |
| 25 | .sp | |
| 26 | Summation sign: $ sum $ | |
| 27 | .sp | |
| 28 | Letter pi: $ pi $ | |
| 29 | .sp | |
| 30 | Subscript and superscript: $ x sub i ~=~ y sup j $ | |
| 31 | .sp | |
| 32 | If this looks ok, type yes. Otherwise, type no. | |
| 33 | .pl 1 | |
| 34 | # | |
| 35 | #once neqn message | nroff -T$term | |
| 36 | #copyin | |
| 37 | #user | |
| 38 | #uncopyin | |
| 39 | #match yes | |
| 40 | #fail | |
| 41 | Do you have the right kind of terminal? | |
| 42 | If you are using a DASI or GSI, make | |
| 43 | sure the switch labeled "PLOT" inside the cover | |
| 44 | is set to ON. | |
| 45 | If these fail, call for help; | |
| 46 | otherwise type yes the next time. | |
| 47 | #log | |
| 48 | #next | |
| 49 | 1.1a |