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VCE Stuff => VCE Mathematics => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Mathematical Methods CAS => Topic started by: pineapple21 on November 04, 2011, 08:38:00 pm

Title: Approx to Exact on TI-nspire?
Post by: pineapple21 on November 04, 2011, 08:38:00 pm

If you enter something on the N-spire and it keeps coming up as an approximate value how do you convert it to exact if that's what the question is asking for?

Title: Re: Approx to Exact on TI-nspire?
Post by: Asx4Life on November 04, 2011, 08:41:54 pm

I just get rid of all the decimals and convert it them to fractions, then you should automatically get an exact answer.

Title: Re: Approx to Exact on TI-nspire?
Post by: Lukey on November 04, 2011, 08:43:36 pm

not sure bout nspire but on Ti-89 u can go to mode-Exact/Approx and change it then press enter

Title: Re: Approx to Exact on TI-nspire?
Post by: b^3 on November 04, 2011, 08:51:43 pm

On the Ti-snpire, you can go into the setting menu, then under general change the calculation mode to
Auto - if there is a decimal point in what you entered you get a decimal, if not you get a fraction
Exact - fractions
Approximate - decimals

I normally leave mine on auto, and if I want a decimal, just use [Menu] [2] [1] to convert it to decimal.

Title: Re: Approx to Exact on TI-nspire?
Post by: monkeywantsabanana on November 04, 2011, 09:33:36 pm

You can type in exact( .... ) where '...' is where you put your decimal answer.