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Core 2 Integration (Trapezium Rule) qUESTION watch

1. Hi! I'm currently revising trapezium rule and I still can't get my head around calculating the areas under a curve using trap rule for certain ''strips''.
How am I supposed to know what the strips are if my limits are, say x = 0 and x = 1? Thanks a lot in advance!
2. (Original post by Matt_dragon)
Hi! I'm currently revising trapezium rule and I still can't get my head around calculating the areas under a curve using trap rule for certain ''strips''.
How am I supposed to know what the strips are if my limits are, say x = 0 and x = 1? Thanks a lot in advance!
The question will surely tell you what width to use?

If you want 2 strips then your ordinates will be x = 0, x = 0.5 and x = 1.

If you want 5 strips then you need x = 0, x =0.2, x = 0.4, x = 0.6, x = 0.8, x = 1 and so on.
3. (Original post by Matt_dragon)
Hi! I'm currently revising trapezium rule and I still can't get my head around calculating the areas under a curve using trap rule for certain ''strips''.
How am I supposed to know what the strips are if my limits are, say x = 0 and x = 1? Thanks a lot in advance!
You are usually told how many strips to use
4. (Original post by mr m)
the question will surely tell you what width to use?

If you want 2 strips then your ordinates will be x = 0, x = 0.5 and x = 1.

If you want 5 strips then you need x = 0, x =0.2, x = 0.4, x = 0.6, x = 0.8, x = 1 and so on.
thank you!

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Updated: April 14, 2013
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