Hi David and Werner,
I've examined the test code and observe two main problems:
(i) equations within .tl don't work - I suspect this could be made
to work..
(ii) the division by zero is occurring because the following
characters appear to have zero height in the html device
parenlefttp
parenleftex
parenleftbt
parenrighttp
parenrightex
parenrightbt
bracketlefttp
bracketleftex
bracketleftbt
bracketrighttp
bracketrightex
bracketrightbt
ie
.nr 0dwidth 0\w\(EQ\[parenrightex]\(EQ
.nr 0eh 0\n[rst]
.nr 0ed 0-\n[rsb]
gives 0eh and 0eh a value of 0 which later are summed and used
as the divisor. I think the correct solution is to modify eqn
to check division by zero and skip if necessary..
I'll have a look and experiment..
regards,
Gaius
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