Sigma Notation

  • Thread starter JDude13
  • Start date
  • #1
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Main Question or Discussion Point

How do I notate this:

[tex]\Lambda_{1}+\Lambda_{2}+\Lambda_{3}+\ldots+\Lambda_{n}=1[/tex]

using sigma notation?
 

Answers and Replies

  • #2
mathman
Science Advisor
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Sigma (k=1,n) lambdak = 1
 
  • #3
22,097
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mathman is correct, but here is the TeXed version:

[tex]\sum_{k=1}^n{\Lambda_k}=1[/tex]
 
  • #4
95
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I had a guess which was exactly the same as yours except with an "i" instead of a "k".
It's not important but... Was I right?

Also; does anyone know how to imput this into a TI-nspire CAS calculator (I can't get the subscript thing to work)?
 
  • #5
gb7nash
Homework Helper
805
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I had a guess which was exactly the same as yours except with an "i" instead of a "k".
It's not important but... Was I right?
It doesn't matter what letter you use. It's just a placeholder. You could put puppy there if you wanted. :biggrin:
 
  • #6
HallsofIvy
Science Advisor
Homework Helper
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It doesn't matter what letter you use. It's just a placeholder. You could put puppy there if you wanted. :biggrin:
Good one. I always say "Fred". No idea why!
 
  • #7
95
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Hurrah! I'm not entirely useless!
 

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