Counting integral solutions of a quadratic equation [closed] Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)Counting Solutions of Diophantine InequalitiesQuadratic Diophantic equationGenerate solutions of Quadratic Diophantine EquationCounting Solutions of a Quadratic Diophantine Equationnumber of ordered pairs of integers (x,y) satisfying the equationSolutions to a quadratic diophantine modular equationEquation - what first?For some natural number $N$,the number of positive integral $'x'$ satisfying the equation is?Number of positive integer solutions to the following equationFinding integer solution to a quadratic equation in two unknowns

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Counting integral solutions of a quadratic equation [closed]



Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)Counting Solutions of Diophantine InequalitiesQuadratic Diophantic equationGenerate solutions of Quadratic Diophantine EquationCounting Solutions of a Quadratic Diophantine Equationnumber of ordered pairs of integers (x,y) satisfying the equationSolutions to a quadratic diophantine modular equationEquation - what first?For some natural number $N$,the number of positive integral $'x'$ satisfying the equation is?Number of positive integer solutions to the following equationFinding integer solution to a quadratic equation in two unknowns










-4












$begingroup$


What is the number of pairs $(x,y)$ of integers satisfying the following equation?



$$x^2+y^2+xy-x+y=2$$










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$endgroup$



closed as off-topic by Eevee Trainer, John Omielan, José Carlos Santos, Jam, heropup Apr 1 at 6:45


This question appears to be off-topic. The users who voted to close gave this specific reason:


  • "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Eevee Trainer, John Omielan, José Carlos Santos, Jam, heropup
If this question can be reworded to fit the rules in the help center, please edit the question.











  • 3




    $begingroup$
    Is that an ellipse?
    $endgroup$
    – Lord Shark the Unknown
    Apr 1 at 6:29















-4












$begingroup$


What is the number of pairs $(x,y)$ of integers satisfying the following equation?



$$x^2+y^2+xy-x+y=2$$










share|cite|improve this question











$endgroup$



closed as off-topic by Eevee Trainer, John Omielan, José Carlos Santos, Jam, heropup Apr 1 at 6:45


This question appears to be off-topic. The users who voted to close gave this specific reason:


  • "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Eevee Trainer, John Omielan, José Carlos Santos, Jam, heropup
If this question can be reworded to fit the rules in the help center, please edit the question.











  • 3




    $begingroup$
    Is that an ellipse?
    $endgroup$
    – Lord Shark the Unknown
    Apr 1 at 6:29













-4












-4








-4


0



$begingroup$


What is the number of pairs $(x,y)$ of integers satisfying the following equation?



$$x^2+y^2+xy-x+y=2$$










share|cite|improve this question











$endgroup$




What is the number of pairs $(x,y)$ of integers satisfying the following equation?



$$x^2+y^2+xy-x+y=2$$







diophantine-equations






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share|cite|improve this question













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share|cite|improve this question








edited Apr 1 at 6:43









Rodrigo de Azevedo

13.2k41961




13.2k41961










asked Apr 1 at 6:13









Sinjan DindaSinjan Dinda

115




115




closed as off-topic by Eevee Trainer, John Omielan, José Carlos Santos, Jam, heropup Apr 1 at 6:45


This question appears to be off-topic. The users who voted to close gave this specific reason:


  • "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Eevee Trainer, John Omielan, José Carlos Santos, Jam, heropup
If this question can be reworded to fit the rules in the help center, please edit the question.







closed as off-topic by Eevee Trainer, John Omielan, José Carlos Santos, Jam, heropup Apr 1 at 6:45


This question appears to be off-topic. The users who voted to close gave this specific reason:


  • "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Eevee Trainer, John Omielan, José Carlos Santos, Jam, heropup
If this question can be reworded to fit the rules in the help center, please edit the question.







  • 3




    $begingroup$
    Is that an ellipse?
    $endgroup$
    – Lord Shark the Unknown
    Apr 1 at 6:29












  • 3




    $begingroup$
    Is that an ellipse?
    $endgroup$
    – Lord Shark the Unknown
    Apr 1 at 6:29







3




3




$begingroup$
Is that an ellipse?
$endgroup$
– Lord Shark the Unknown
Apr 1 at 6:29




$begingroup$
Is that an ellipse?
$endgroup$
– Lord Shark the Unknown
Apr 1 at 6:29










1 Answer
1






active

oldest

votes


















1












$begingroup$

The given equation represents an ellipse. Now points with integral coordinates that lie on this ellipse are solutions. Try plotting it and noting the points where it cuts the axes. Are the values integral? Are there any other possibilities?






share|cite|improve this answer









$endgroup$












  • $begingroup$
    Sir is there no method by simple algebra
    $endgroup$
    – Sinjan Dinda
    Apr 1 at 6:51

















1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









1












$begingroup$

The given equation represents an ellipse. Now points with integral coordinates that lie on this ellipse are solutions. Try plotting it and noting the points where it cuts the axes. Are the values integral? Are there any other possibilities?






share|cite|improve this answer









$endgroup$












  • $begingroup$
    Sir is there no method by simple algebra
    $endgroup$
    – Sinjan Dinda
    Apr 1 at 6:51















1












$begingroup$

The given equation represents an ellipse. Now points with integral coordinates that lie on this ellipse are solutions. Try plotting it and noting the points where it cuts the axes. Are the values integral? Are there any other possibilities?






share|cite|improve this answer









$endgroup$












  • $begingroup$
    Sir is there no method by simple algebra
    $endgroup$
    – Sinjan Dinda
    Apr 1 at 6:51













1












1








1





$begingroup$

The given equation represents an ellipse. Now points with integral coordinates that lie on this ellipse are solutions. Try plotting it and noting the points where it cuts the axes. Are the values integral? Are there any other possibilities?






share|cite|improve this answer









$endgroup$



The given equation represents an ellipse. Now points with integral coordinates that lie on this ellipse are solutions. Try plotting it and noting the points where it cuts the axes. Are the values integral? Are there any other possibilities?







share|cite|improve this answer












share|cite|improve this answer



share|cite|improve this answer










answered Apr 1 at 6:39









Sameer ThakurSameer Thakur

546




546











  • $begingroup$
    Sir is there no method by simple algebra
    $endgroup$
    – Sinjan Dinda
    Apr 1 at 6:51
















  • $begingroup$
    Sir is there no method by simple algebra
    $endgroup$
    – Sinjan Dinda
    Apr 1 at 6:51















$begingroup$
Sir is there no method by simple algebra
$endgroup$
– Sinjan Dinda
Apr 1 at 6:51




$begingroup$
Sir is there no method by simple algebra
$endgroup$
– Sinjan Dinda
Apr 1 at 6:51



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