- #1
bobie
Gold Member
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Homework Statement
I hope this is the right forum for this question.
I am starting to self-teach calculus, could you help me shape my problem?
I am trying to use wolfram:
I know that if I integrate an equation say: 5/[itex]\sqrt x[/itex], I will get the area underneath that curve
http://www.wolframalpha.com/input/?i=+integrate+y=+5/sqrt(x)+++from+20+to+10^4
Now, I want to summate all the values we get increasing x by x or another value:
5/sqrt20 +5/sqrt40...+5/sqrt 10^4
What do you call this operation? is it still integration, by steps or what?
is it necessary to regulate dx to 20, or what
Can you help me formulate this operation :
integrate y = 5/sqrt x from 20 to 10^4 , step 20 or x or...
THanks for your help