"What's
algebra got to do with it?"
"You've
got to prove what can be proved, first. Find the constants. Did she
really go to the theatre? Was she alone? Did the neighbours hear her
come back? If so, what time? Was Fennan really late Tuesdays? Did his
Missus go to the theatre regular every fortnight like she said?"
It´s great
that detectives use mathematics methods
in their work.
You
can’t rush an investigation.
The first thing you have to find out is whether a
solution even exists. Or, in mathematicians’
terms, whether the system of
equations is
compatible with the data.
Because, what´s
the point in trying to solve something that
has no solution?
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