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Annotation of 42BSD/usr.lib/learn/eqn/L9.1b, revision 1.1.1.1

1.1       root        1: #once #create message
                      2: .ND
                      3: .tr %$
                      4: .EQ
                      5: delim $$
                      6: .EN
                      7: .LP
                      8: You sometimes have to make explicit what you
                      9: mean when you say "bar", by putting in braces
                     10: to enclose the parts that you want the bar
                     11: to be over. 
                     12: For example, what has to be done to make
                     13: the output
                     14: .EQ
                     15: {x sub i} bar
                     16: .EN
                     17: Find out (by putting braces in the right place
                     18: if necessary) in the file "Example", then
                     19: type "ready" after you have successfully modified it.
                     20: .pl 1
                     21: #once #create Ref
                     22: .EQ
                     23: delim $$
                     24: .EN
                     25: .LP
                     26: .EQ
                     27: {x sub i} bar
                     28: .EN
                     29: .pl 1
                     30: #once #create Example
                     31: .EQ
                     32: delim $$
                     33: .EN
                     34: .LP
                     35: .EQ
                     36: x sub i bar
                     37: .EN
                     38: .pl 1
                     39: #
                     40: #once neqn Ref | nroff >X1 &
                     41: #once neqn message Ref | nroff -T$term %s/tinyms -
                     42: #user
                     43: neqn Example | nroff >X2
                     44: #cmp X1 X2
                     45: #log
                     46: #next
                     47: 10.1a 10
                     48: 9.2b 5

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