Graphs 10 rectangular functions, 6 parametric expressions, 6 polar expressions and 3 recursively-defined sequences.

Real and complex numbers calculated to 14-digit accuracy and displayed with 10 digits plus a 2-digit exponent.

Advanced functions accessed through pull-down display menus.

If someone replies to your “searching for a calculator post” – continue to hash out details over facebook messenger, rather than putting all your business out there for everyone to see.

Don’t go to the person’s house – there are too many horror stories!.

You should always choose a SAFE PUBLIC MEETING PLACE – and preferrably one that’s halfway between you both.

I got my son’s calculator this way – and while it went fine, it was a bit of a drive.

You may wind up with a free one!Ī Few Tips for buying from an online seller (aka – Facebook group) Also a great option!Īsk around at school or your own adult friends to see if they still have theirs and would be willing to give it up. Heck, they may even give it to you for free!Ĭraigslist: I found TI-83’s, 84’s and 85’s for as low as $35 nearby – this is a great option!Įbay: I found TI-83’s from $35 – $60 that were certified in good condition. Chances are, someone has one in the bottom of their junk drawer and will never use it again. If you have books, cds, video games, etc… to sell – you could get trade in credit for an even better deal!Īsk friends, family, church members, etc… if they know of anyone who has a TI-84 for sale. I haven’t been down there yet to see how much they’re running – but anything will be a good deal if it’s under $80.

There’s a nice book/music store near us called McKay’s that is buying/selling graphing calculators this year. Besides being a likely place to find a calculator, you might also be able to score some cheap furniture as the old group moves out of their dorms 😉 Scroll down to see my tips for buying on these sites.Īre you living in a college town? Search Facebook for a yardsale or resale group specifically focused on the college kids. Search Facebook for a yardsale group near you – and say that you’re ISO a graphing calculator (In search of).

Texas Instruments TI-84 Plus Graphing Calculator –

Texas Instruments TI-83 Plus Graphing Calucluator –

Texas Instruments TI-84 Plus Graphing Calculator – (prices fluctuate, check for current price) Texas Instruments TI-83 Plus Graphing Calucluator – (prices fluctuate, check for current price) At around $100, this is definitely time to go deal hunting! Here are 7 ways to save on the Texas Instruments TI-83 or TI-84 Calculator: If you just noticed that your child has to get a TI-83 or TI-84 calculator as part of their school supplies – you might also have just seen the sticker price. Amazon just dropped the price of the TI-84 calculator (in black)exclusively for Prime Members – get it before it jumps back up!

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