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Annotation of 43BSD/usr.lib/learn/eqn/L4.1d, revision 1.1.1.1

1.1       root        1: #once #create message
                      2: .ND
                      3: .LP
                      4: You can put fractions over fractions with multiple "over"'s
                      5: just as you can do multiple subscripts and superscripts,
                      6: although fractions within fractions are much
                      7: less common (probably because they are harder for
                      8: people to read).
                      9: Anyway, if you want, for example, something like
                     10: .EQ
                     11: a over b over c
                     12: .EN
                     13: you just type
                     14:   .EQ
                     15:   a over b over c
                     16:   .EN
                     17: 
                     18: As a drill, change "Example" so it produces an equation
                     19: that looks like the following one, then type "ready".
                     20: .pl 1
                     21: #once #create Ref
                     22: .LP
                     23: .EQ
                     24: x over x+x over x+x+x
                     25: .EN
                     26: .pl 1
                     27: #once #create Example
                     28: .LP
                     29: .EQ
                     30: right here
                     31: .EN
                     32: .pl 1
                     33: #
                     34: #once neqn Ref | nroff >X1 &
                     35: #once neqn message Ref | nroff -T$term %s/tinyms -
                     36: #user
                     37: neqn Example | nroff >X2
                     38: #cmp X1 X2
                     39: #log
                     40: #next
                     41: 5.1a

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