Hey there! Sign in to join this conversationNew here? Join for free
x Turn on thread page Beta

trapizium Rule----P2 watch

Announcements
    • Thread Starter
    Offline

    13
    ReputationRep:
    Can anyone explain the Trapezium rule? i really cant get it!

    THNX ( rep to whoever can ger it STUCK in my head)
    Offline

    14
    ReputationRep:
    you use many trapeziums to estimate the area under a curve. the more you have, the more accurate the estimation.

    ordinates are the lines separating the strips, and the strips are the strips.

    to calculate the area, you take teh x values of the ordinates (which depends how how 'high' each strip is) and calculate the appropriate y values.

    the first and last y values need to be added to 2X(the sum of the other y values).
    then times that by the 'height' of each strip, divided by two.
    • Thread Starter
    Offline

    13
    ReputationRep:
    Ok, but what is the diff between strips and ordinates?
    Offline

    10
    ReputationRep:
    (Original post by KOH)
    Ok, but what is the diff between strips and ordinates?
    The strips are the actual areas, the ordinates are the divisions.
    • Thread Starter
    Offline

    13
    ReputationRep:
    (Original post by Nylex)
    The strips are the actual areas, the ordinates are the divisions.

    so if question said:

    use the trapizium rule with 6 equally spaced ordinates, to calculate the area under the curve of equation ( y= SecX ) between (-Pi/3) and (pi/3) how we do it?
    Offline

    10
    ReputationRep:
    (Original post by KOH)
    so if question said:

    use the trapizium rule with 6 equally spaced ordinates, to calculate the area under the curve of equation ( y= SecX ) between (-Pi/3) and (pi/3) how we do it?
    See above, that method is right.
    • Thread Starter
    Offline

    13
    ReputationRep:
    (Original post by Nylex)
    See above, that method is right.

    Thnx.....
 
 
 
Poll
Do you agree with the proposed ban on plastic straws and cotton buds?

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.