Help please (underestimates and over...) Watch

spikey_aman
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#1
Report Thread starter 13 years ago
#1
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
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Jonny W
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#2
Report 13 years ago
#2
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.
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