Finding all solutions (primitive and imprimitive) of the diophantine equation ax2+bxy+cy2=n, where b2-4ac < 0, a > 0, n > 0.
This is a somewhat different method to the one in in L.E. Dickson's Introduction to the theory of numbers and uses a substitution due to Lagrange in 1770.
The program is a BCMath version of a BC program.
E = 1 is verbose.
Last modified 15th March 2015
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