Hey there! Sign in to join this conversationNew here? Join for free
Turn on thread page Beta
    • Thread Starter
    Offline

    0
    ReputationRep:
    I have two solutions... an overestimate and an underestimate.

    I need to show where the solution lies to a certain number of decimal places. Please, if anyone can, help me to get the answer and explain how, possibly.

    Upper bound (i think it is what this is called - the overestimate i have) is 14.99000533

    and the lower (the underestimate) is
    14.98962678.

    So X lies between the two bounds, are they 14.989 < x < 14.990 ??

    thanks to anyone who can help
    Offline

    2
    ReputationRep:
    If you take any number between 14.98962678 and 14.99000533 and round it to three decimal places, you get 14.990.

    So although you don't know the exact solution, you know that it equals 14.990 to 3dp.
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: April 13, 2006
Poll
“Yanny” or “Laurel”
Useful resources

Make your revision easier

Maths

Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

Equations

How to use LaTex

Writing equations the easy way

Student revising

Study habits of A* students

Top tips from students who have already aced their exams

Study Planner

Create your own Study Planner

Never miss a deadline again

Polling station sign

Thinking about a maths degree?

Chat with other maths applicants

Can you help? Study help unanswered threads

Groups associated with this forum:

View associated groups

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.