Sigmas Problem ΣΣ i^2 [on hold]












-1














How can i solve this?



$ΣΣ i^2=?$



both are from 1 to 4
And i is the variable



My Answer is 58.am i correct?






measure-theory







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New contributor




Mobina K is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











put on hold as unclear what you're asking by Nosrati, Lord Shark the Unknown, Henrik, José Carlos Santos, Did Jan 4 at 8:18


Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.











  • 1




    what are the variables of each sum?
    – Zachary Hunter
    Jan 4 at 5:25










  • i is the variable
    – Mobina K
    Jan 4 at 5:26










  • i is the variable for both?
    – Zachary Hunter
    Jan 4 at 5:27










  • also, I believe you can do this short double sum by hand, am I wrong?
    – Zachary Hunter
    Jan 4 at 5:28










  • Yes.i is the variable for both.i just need to check the answer
    – Mobina K
    Jan 4 at 5:32
















-1














How can i solve this?



$ΣΣ i^2=?$



both are from 1 to 4
And i is the variable



My Answer is 58.am i correct?






measure-theory







share|cite|improve this question









New contributor




Mobina K is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











put on hold as unclear what you're asking by Nosrati, Lord Shark the Unknown, Henrik, José Carlos Santos, Did Jan 4 at 8:18


Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.











  • 1




    what are the variables of each sum?
    – Zachary Hunter
    Jan 4 at 5:25










  • i is the variable
    – Mobina K
    Jan 4 at 5:26










  • i is the variable for both?
    – Zachary Hunter
    Jan 4 at 5:27










  • also, I believe you can do this short double sum by hand, am I wrong?
    – Zachary Hunter
    Jan 4 at 5:28










  • Yes.i is the variable for both.i just need to check the answer
    – Mobina K
    Jan 4 at 5:32














-1












-1








-1







How can i solve this?



$ΣΣ i^2=?$



both are from 1 to 4
And i is the variable



My Answer is 58.am i correct?






measure-theory







share|cite|improve this question









New contributor




Mobina K is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











How can i solve this?



$ΣΣ i^2=?$



both are from 1 to 4
And i is the variable



My Answer is 58.am i correct?






measure-theory




measure-theory






share|cite|improve this question









New contributor




Mobina K is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|cite|improve this question









New contributor




Mobina K is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|cite|improve this question




share|cite|improve this question








edited Jan 4 at 5:36







Mobina K













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Mobina K is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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asked Jan 4 at 5:22









Mobina KMobina K

134




134




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Mobina K is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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New contributor





Mobina K is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






Mobina K is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.




put on hold as unclear what you're asking by Nosrati, Lord Shark the Unknown, Henrik, José Carlos Santos, Did Jan 4 at 8:18


Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.






put on hold as unclear what you're asking by Nosrati, Lord Shark the Unknown, Henrik, José Carlos Santos, Did Jan 4 at 8:18


Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.










  • 1




    what are the variables of each sum?
    – Zachary Hunter
    Jan 4 at 5:25










  • i is the variable
    – Mobina K
    Jan 4 at 5:26










  • i is the variable for both?
    – Zachary Hunter
    Jan 4 at 5:27










  • also, I believe you can do this short double sum by hand, am I wrong?
    – Zachary Hunter
    Jan 4 at 5:28










  • Yes.i is the variable for both.i just need to check the answer
    – Mobina K
    Jan 4 at 5:32














  • 1




    what are the variables of each sum?
    – Zachary Hunter
    Jan 4 at 5:25










  • i is the variable
    – Mobina K
    Jan 4 at 5:26










  • i is the variable for both?
    – Zachary Hunter
    Jan 4 at 5:27










  • also, I believe you can do this short double sum by hand, am I wrong?
    – Zachary Hunter
    Jan 4 at 5:28










  • Yes.i is the variable for both.i just need to check the answer
    – Mobina K
    Jan 4 at 5:32








1




1




what are the variables of each sum?
– Zachary Hunter
Jan 4 at 5:25




what are the variables of each sum?
– Zachary Hunter
Jan 4 at 5:25












i is the variable
– Mobina K
Jan 4 at 5:26




i is the variable
– Mobina K
Jan 4 at 5:26












i is the variable for both?
– Zachary Hunter
Jan 4 at 5:27




i is the variable for both?
– Zachary Hunter
Jan 4 at 5:27












also, I believe you can do this short double sum by hand, am I wrong?
– Zachary Hunter
Jan 4 at 5:28




also, I believe you can do this short double sum by hand, am I wrong?
– Zachary Hunter
Jan 4 at 5:28












Yes.i is the variable for both.i just need to check the answer
– Mobina K
Jan 4 at 5:32




Yes.i is the variable for both.i just need to check the answer
– Mobina K
Jan 4 at 5:32










1 Answer
1






active

oldest

votes


















0














Is this the correct expression?
$$sum_{i=1}^{4}sum_{i=1}^{4}i^2$$
If so this is equal to
$$sum_{i=1}^{4}(1^2+2^2+3^2+4^2) = sum_{i=1}^{4}30 = 120$$






share|cite|improve this answer








New contributor




Erik Parkinson is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.














  • 1




    You should start one of the sums with $j$ or another letter.
    – harshit54
    Jan 4 at 6:12










  • I agree, I was just trying to stick with the notation Mobina K was using.
    – Erik Parkinson
    Jan 4 at 6:13






  • 1




    Ok. I definitely think that the he/she misread the question.
    – harshit54
    Jan 4 at 6:14










  • Sticking to bad notations is a bad idea. Do not use the same variable twice.
    – Did
    Jan 4 at 8:20




















1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









0














Is this the correct expression?
$$sum_{i=1}^{4}sum_{i=1}^{4}i^2$$
If so this is equal to
$$sum_{i=1}^{4}(1^2+2^2+3^2+4^2) = sum_{i=1}^{4}30 = 120$$






share|cite|improve this answer








New contributor




Erik Parkinson is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.














  • 1




    You should start one of the sums with $j$ or another letter.
    – harshit54
    Jan 4 at 6:12










  • I agree, I was just trying to stick with the notation Mobina K was using.
    – Erik Parkinson
    Jan 4 at 6:13






  • 1




    Ok. I definitely think that the he/she misread the question.
    – harshit54
    Jan 4 at 6:14










  • Sticking to bad notations is a bad idea. Do not use the same variable twice.
    – Did
    Jan 4 at 8:20


















0














Is this the correct expression?
$$sum_{i=1}^{4}sum_{i=1}^{4}i^2$$
If so this is equal to
$$sum_{i=1}^{4}(1^2+2^2+3^2+4^2) = sum_{i=1}^{4}30 = 120$$






share|cite|improve this answer








New contributor




Erik Parkinson is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.














  • 1




    You should start one of the sums with $j$ or another letter.
    – harshit54
    Jan 4 at 6:12










  • I agree, I was just trying to stick with the notation Mobina K was using.
    – Erik Parkinson
    Jan 4 at 6:13






  • 1




    Ok. I definitely think that the he/she misread the question.
    – harshit54
    Jan 4 at 6:14










  • Sticking to bad notations is a bad idea. Do not use the same variable twice.
    – Did
    Jan 4 at 8:20
















0












0








0






Is this the correct expression?
$$sum_{i=1}^{4}sum_{i=1}^{4}i^2$$
If so this is equal to
$$sum_{i=1}^{4}(1^2+2^2+3^2+4^2) = sum_{i=1}^{4}30 = 120$$






share|cite|improve this answer








New contributor




Erik Parkinson is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









Is this the correct expression?
$$sum_{i=1}^{4}sum_{i=1}^{4}i^2$$
If so this is equal to
$$sum_{i=1}^{4}(1^2+2^2+3^2+4^2) = sum_{i=1}^{4}30 = 120$$







share|cite|improve this answer








New contributor




Erik Parkinson is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|cite|improve this answer



share|cite|improve this answer






New contributor




Erik Parkinson is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









answered Jan 4 at 6:05









Erik ParkinsonErik Parkinson

9159




9159




New contributor




Erik Parkinson is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





New contributor





Erik Parkinson is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






Erik Parkinson is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.








  • 1




    You should start one of the sums with $j$ or another letter.
    – harshit54
    Jan 4 at 6:12










  • I agree, I was just trying to stick with the notation Mobina K was using.
    – Erik Parkinson
    Jan 4 at 6:13






  • 1




    Ok. I definitely think that the he/she misread the question.
    – harshit54
    Jan 4 at 6:14










  • Sticking to bad notations is a bad idea. Do not use the same variable twice.
    – Did
    Jan 4 at 8:20
















  • 1




    You should start one of the sums with $j$ or another letter.
    – harshit54
    Jan 4 at 6:12










  • I agree, I was just trying to stick with the notation Mobina K was using.
    – Erik Parkinson
    Jan 4 at 6:13






  • 1




    Ok. I definitely think that the he/she misread the question.
    – harshit54
    Jan 4 at 6:14










  • Sticking to bad notations is a bad idea. Do not use the same variable twice.
    – Did
    Jan 4 at 8:20










1




1




You should start one of the sums with $j$ or another letter.
– harshit54
Jan 4 at 6:12




You should start one of the sums with $j$ or another letter.
– harshit54
Jan 4 at 6:12












I agree, I was just trying to stick with the notation Mobina K was using.
– Erik Parkinson
Jan 4 at 6:13




I agree, I was just trying to stick with the notation Mobina K was using.
– Erik Parkinson
Jan 4 at 6:13




1




1




Ok. I definitely think that the he/she misread the question.
– harshit54
Jan 4 at 6:14




Ok. I definitely think that the he/she misread the question.
– harshit54
Jan 4 at 6:14












Sticking to bad notations is a bad idea. Do not use the same variable twice.
– Did
Jan 4 at 8:20






Sticking to bad notations is a bad idea. Do not use the same variable twice.
– Did
Jan 4 at 8:20





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