Sun 05 Jul 2015 09:52:06 PM UTC, original submission:
This report is mainly for Colin Macdonald
clear
syms A B C D E E11 E1 ww
e1=2.5A +1.5D -2*E== 57.1
e2= 3A +2.5D -1*E== 27.6
e3=-4A -6D +2*E==-81.2
sf=solve(e1,e2,e3,A,D,E)
1) This first part works correctly.
2) Now try this:
se=solve(e1,A)
# answer is
# se = (sym)
#
# 3⋅D 4⋅ℯ 571
# - ─── + ─── + ───
# 5 5 25
The answer I see has a small letter e in it, but no small letter e in the question.
3) Now try the following: I tried changing E to E1
to try and get away from the small e.
this output is huge and wrong
e1=2.5A +1.5D -2*E1== 57.1
se=solve(e1,A)
4) to trouble shoot the wrong answer I tried:
ww=E1
and found out the E1 is a special function and cannot be used in my program.
The huge output from 3) is just this ascii warning sting treated as ascii values multiplied into the answer to 3)
If i change E to E2 then all is good.
Colin keep up the good work, I am enjoying the symbolic pkg.
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