Binary quadratic form: Difference between revisions

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==Representations==

We say that a binary quadratic form <math>q(x,y)</math> '''represents''' an integer <math>n</math> if it is possible to find integers <math>x</math> and <math>y</math> satisfying the equation <math>n = fq(x,y).</math> Such an equation is a '''representation''' of ''n'' by ''f''.

=== Examples ===