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  • Ti 89 Titanium Programmable Graphing Calculator
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Buy from Amazon $158.70$1.29 $175.00 $131.25 $87.50 $43.75 Mar Jun Sep Dec Mar Jun Sep Dec Mar Jun 2014 2015 2016 $139.99, Dec 30 5:02 am$140.99, Dec 31 - Jan 3$139.99, Jan 4 - Jan 5$149.99, Jan 7 - Jan 8$149.95, Jan 9 5:16 pm$149.99, Jan 11 - Jan 12$147.99, Jan 14 - Jan 15$134.99, Jan 16 - Jan 17$141.99, Jan 18 - Jan 27$142.99, Jan 30 6:03 am$139.99, Feb 17 - Feb 26$144.99, Mar 1 - Mar 3$138.99, Mar 4 5:14 am$144.99, Mar 19 - Mar 25$146.99, Mar 26 11:01 am$144.99, Apr 13 12:45 am$140.99, Apr 15 11:27 pm$144.99, Apr 16 - Apr 18$146.99, Apr 18 - Apr 24$144.99, Apr 27 12:44 am$147.99, Apr 28 - Apr 29$144.99, May 1 4:13 am$140.00, May 3 12:44 am$74.00, May 3 - May 8$138.00, May 4 - May 13$74.00, May 3 - May 8$138.00, May 4 - May 13$70.00, May 9 - May 11$138.00, May 4 - May 13$74.00, May 12 - May 17$122.98, May 14 3:30 pm$74.00, May 12 - May 17$119.95, May 15 - May 25$74.00, May 12 - May 17$119.95, May 15 - May 25$66.00, May 18 10:18 am$119.95, May 15 - May 25$70.00, May 19 - May 23$119.95, May 15 - May 25$59.99, May 23 - May 30$138.00, May 26 - May 29$59.99, May 23 - May 30$115.00, May 30 - Jun 1$59.99, May 23 - May 30$115.00, May 30 - Jun 1$74.00, May 31 - Jun 4$130.00, Jun 3 - Jun 5$74.00, May 31 - Jun 4$130.00, Jun 3 - Jun 5$73.00, Jun 5 - Jun 9$128.00, Jun 6 - Jun 9$73.00, Jun 5 - Jun 9$120.00, Jun 10 5:54 am$74.00, Jun 10 - Jun 13$130.00, Jun 10 - Jul 24$74.00, Jun 10 - Jun 13$130.00, Jun 10 - Jul 24$77.00, Jun 14 - Jun 22$130.00, Jun 10 - Jul 24$71.00, Jun 23 9:46 pm$130.00, Jun 10 - Jul 24$70.00, Jun 24 - Jun 26$130.00, Jun 10 - Jul 24$69.50, Jun 29 - Jun 30$130.00, Jun 10 - Jul 24$68.98, Jul 2 - Jul 6$130.00, Jun 10 - Jul 24$68.99, Jul 7 - Jul 13$130.00, Jun 10 - Jul 24$68.20, Jul 15 3:03 am$130.00, Jun 10 - Jul 24$62.71, Jul 16 - Jul 19$130.00, Jun 10 - Jul 24$64.99, Jul 20 6:53 am$130.00, Jun 10 - Jul 24$60.00, Jul 21 - Jul 22$130.00, Jun 10 - Jul 24$59.95, Jul 24 8:44 am$130.00, Jul 26 - Aug 3$65.00, Jul 25 - Jul 27$130.00, Jul 26 - Aug 3$70.00, Jul 31 - Aug 7$138.00, Aug 4 1:26 am$70.00, Jul 31 - Aug 7$137.95, Aug 5 - Aug 13$70.00, Jul 31 - Aug 7$137.95, Aug 5 - Aug 13$59.43, Aug 9 1:58 am$137.95, Aug 5 - Aug 13$58.65, Aug 10 - Aug 11$137.95, Aug 5 - Aug 13$72.56, Aug 13 11:15 pm$125.95, Aug 14 - Aug 16$67.00, Aug 14 - Aug 17$137.94, Aug 17 - Aug 19$67.00, Aug 14 - Aug 17$137.93, Aug 20 - Aug 21$80.00, Aug 19 - Aug 22$137.92, Aug 22 6:34 am$80.00, Aug 19 - Aug 22$137.90, Aug 24 - Aug 26$85.00, Aug 23 - Sep 23$137.88, Aug 28 - Aug 29$85.00, Aug 23 - Sep 23$137.49, Aug 30 10:13 pm$85.00, Aug 23 - Sep 23$136.99, Sep 1 - Sep 2$85.00, Aug 23 - Sep 23$137.49, Sep 4 3:27 pm$85.00, Aug 23 - Sep 23$137.87, Sep 5 - Sep 7$85.00, Aug 23 - Sep 23$137.86, Sep 7 - Sep 10$85.00, Aug 23 - Sep 23$137.85, Sep 11 - Sep 12$85.00, Aug 23 - Sep 23$137.84, Sep 13 10:01 pm$85.00, Aug 23 - Sep 23$137.83, Sep 14 - Sep 16$85.00, Aug 23 - Sep 23$137.82, Sep 18 - Sep 21$85.00, Aug 23 - Sep 23$137.81, Sep 23 - Sep 29$85.00, Sep 25 - Oct 13$137.79, Sep 30 - Oct 18$85.00, Sep 25 - Oct 13$137.79, Sep 30 - Oct 18$102.51, Oct 14 4:06 pm$137.79, Sep 30 - Oct 18$99.30, Oct 16 10:41 pm$137.78, Oct 19 - Oct 20$79.99, Oct 19 - Oct 20$137.77, Oct 21 11:50 am$99.26, Oct 21 11:50 am$137.76, Oct 22 - Oct 25$85.00, Oct 22 - Oct 25$137.74, Oct 28 10:04 am$105.25, Oct 28 10:04 am$137.72, Oct 31 10:35 pm$85.00, Oct 31 - Nov 18$137.71, Nov 3 6:08 pm$85.00, Oct 31 - Nov 18$137.69, Nov 7 4:43 pm$85.00, Oct 31 - Nov 18$137.68, Nov 10 10:32 pm$85.00, Oct 31 - Nov 18$137.67, Nov 13 - Nov 18$85.00, Oct 31 - Nov 18$119.89, Nov 19 3:41 pm$84.00, Nov 19 - Nov 20$130.85, Nov 21 7:43 pm$83.50, Nov 21 - Nov 22$130.84, Nov 23 - Nov 25$83.45, Nov 23 10:36 pm$130.85, Nov 26 - Dec 3$74.00, Nov 26 - Nov 28$130.85, Nov 26 - Dec 3$81.07, Nov 30 2:49 am$130.85, Nov 26 - Dec 3$76.16, Dec 3 - Dec 9$130.84, Dec 5 3:27 am$76.16, Dec 3 - Dec 9$130.85, Dec 7 - Dec 8$76.16, Dec 3 - Dec 9$130.84, Dec 9 3:57 am$76.16, Dec 3 - Dec 9$130.84, Dec 11 10:05 am$83.45, Dec 11 - Dec 16$130.82, Dec 13 - Dec 17$83.45, Dec 11 - Dec 16$130.81, Dec 18 11:09 am$80.08, Dec 18 11:09 am$130.78, Dec 22 - Dec 23$75.00, Dec 21 - Jan 1$130.77, Dec 24 10:25 am$75.00, Dec 21 - Jan 1$130.75, Dec 27 - Dec 29$75.00, Dec 21 - Jan 1$130.74, Dec 29 - Dec 30$75.00, Dec 21 - Jan 1$130.73, Dec 31 - Jan 1$75.00, Dec 21 - Jan 1$130.72, Jan 2 - Jan 4$76.16, Jan 2 - Jan 3$130.71, Jan 4 - Jan 6$76.16, Jan 5 - Jan 6$130.70, Jan 6 - Jan 8$69.99, Jan 7 - Jan 8$130.69, Jan 8 - Jan 9$76.16, Jan 8 - Jan 10$130.67, Jan 11 - Jan 13$70.00, Jan 11 - Jan 13$130.66, Jan 13 - Jan 16$76.16, Jan 16 - Jan 20$130.65, Jan 17 - Jan 18$76.16, Jan 16 - Jan 20$130.64, Jan 19 - Jan 21$76.16, Jan 16 - Jan 20$130.63, Jan 22 - Jan 23$84.00, Jan 23 - Jan 25$130.61, Jan 24 8:54 pm$84.00, Jan 23 - Jan 25$130.59, Jan 27 11:38 am$85.00, Jan 27 11:38 am$130.58, Jan 28 - Jan 29$83.90, Jan 29 - Feb 2$126.45, Feb 1 12:33 am$83.90, Jan 29 - Feb 2$126.45, Feb 2 - Feb 3$83.00, Feb 2 10:20 pm$126.44, Feb 4 6:16 pm$70.00, Feb 3 - Feb 4$126.44, Feb 7 11:29 am$64.00, Feb 5 - Feb 7$126.45, Feb 8 - Feb 9$82.49, Feb 9 8:10 am$126.45, Feb 12 - Feb 14$79.98, Feb 12 3:37 am$126.45, Feb 12 - Feb 14$82.29, Feb 13 - Feb 15$126.44, Feb 15 - Feb 16$82.29, Feb 13 - Feb 15$100.00, Feb 18 - Feb 19$81.91, Feb 18 - Feb 26$126.44, Feb 20 - Feb 22$81.91, Feb 18 - Feb 26$126.45, Feb 23 - Feb 25$81.91, Feb 18 - Feb 26$126.45, Feb 27 - Mar 1$81.62, Feb 27 - Feb 28$126.45, Feb 27 - Mar 1$80.62, Mar 1 7:46 pm$126.45, Mar 4 - Mar 5$82.19, Mar 4 - Mar 8$126.44, Mar 6 9:23 am$82.19, Mar 4 - Mar 8$126.45, Mar 7 - Mar 9$82.19, Mar 4 - Mar 8$126.44, Mar 10 - Mar 11$80.00, Mar 9 - Mar 13$126.45, Mar 13 1:12 am$80.00, Mar 9 - Mar 13$126.44, Mar 14 - Mar 15$79.90, Mar 14 - Mar 23$126.45, Mar 16 - Mar 19$79.90, Mar 14 - Mar 23$134.00, Mar 20 - Apr 1$79.90, Mar 14 - Mar 23$134.00, Mar 20 - Apr 1$60.00, Mar 24 6:33 am$134.00, Mar 20 - Apr 1$79.90, Mar 25 - Mar 27$134.00, Mar 20 - Apr 1$75.00, Mar 30 - Mar 31$134.00, Mar 20 - Apr 1$70.00, Apr 1 3:30 pm$133.99, Apr 3 - Apr 4$79.90, Apr 3 - Apr 25$133.98, Apr 5 4:33 pm$79.90, Apr 3 - Apr 25$133.96, Apr 8 9:22 am$79.90, Apr 3 - Apr 25$133.95, Apr 9 - Apr 12$79.90, Apr 3 - Apr 25$130.99, Apr 15 2:13 pm$79.90, Apr 3 - Apr 25$130.98, Apr 16 10:57 pm$79.90, Apr 3 - Apr 25$130.96, Apr 19 2:37 pm$79.90, Apr 3 - Apr 25$130.95, Apr 20 11:51 pm$79.90, Apr 3 - Apr 25$130.93, Apr 23 5:41 pm$79.90, Apr 3 - Apr 25$130.92, Apr 25 5:10 am$79.90, Apr 3 - Apr 25$129.48, Apr 28 9:00 am$74.49, Apr 28 - Apr 29$129.47, Apr 29 8:29 pm$74.49, Apr 28 - Apr 29$129.45, May 2 3:42 pm$79.90, May 1 - May 2$129.42, May 5 9:59 am$75.00, May 4 - May 5$129.41, May 6 8:05 pm$79.90, May 6 - May 8$129.39, May 8 6:06 pm$79.90, May 6 - May 8$129.37, May 10 8:09 pm$79.78, May 10 8:09 pm$129.34, May 14 3:38 am$79.70, May 12 - May 14$129.33, May 15 9:25 pm$75.00, May 15 - May 24$129.31, May 17 7:58 pm$75.00, May 15 - May 24$135.00, May 20 - May 28$75.00, May 15 - May 24$135.00, May 20 - May 28$1.29, May 26 10:43 am$135.00, May 20 - May 28$2.97, May 28 4:06 pm$132.00, May 31 12:02 am$5.99, May 31 12:02 am$135.00, Jun 2 - Jul 24$6.00, Jun 2 8:49 am$135.00, Jun 2 - Jul 24$75.00, Jun 4 5:02 pm$135.00, Jun 2 - Jul 24$74.00, Jun 7 - Jun 9$135.00, Jun 2 - Jul 24$70.00, Jun 11 - Jun 21$135.00, Jun 2 - Jul 24$75.00, Jun 22 - Jun 24$135.00, Jun 2 - Jul 24$79.89, Jun 26 - Jul 3$135.00, Jun 2 - Jul 24$75.00, Jul 5 - Jul 10$135.00, Jun 2 - Jul 24$68.00, Jul 13 - Jul 29$145.99, Jul 25 - Jul 29$68.00, Jul 13 - Jul 29$135.00, Jul 31 - Aug 19$67.99, Jul 31 - Aug 2$135.00, Jul 31 - Aug 19$68.00, Aug 4 - Aug 5$135.00, Jul 31 - Aug 19$65.00, Aug 7 - Aug 11$135.00, Jul 31 - Aug 19$68.00, Aug 13 - Aug 21$70.00, Aug 21 6:33 am$68.00, Aug 13 - Aug 21$135.00, Aug 23 4:10 am$79.77, Aug 23 4:10 am$134.89, Aug 25 2:17 am$80.00, Aug 25 2:17 am$139.99, Aug 28 10:38 pm$85.00, Aug 28 10:38 pmOOS $142.99, Aug 30 8:30 pm$85.39, Aug 30 8:30 pm$142.99, Sep 1 5:44 pm$85.00, Sep 1 5:44 pmOOS $142.99, Sep 3 4:33 pm$84.90, Sep 3 4:33 pm$142.99, Sep 5 - Sep 9$85.00, Sep 5 4:09 pm$142.99, Sep 5 - Sep 9$83.29, Sep 7 4:12 pm$142.99, Sep 5 - Sep 9$83.23, Sep 9 4:14 pm$149.99, Sep 11 - Sep 19$83.20, Sep 13 2:40 pm$149.99, Sep 11 - Sep 19$89.88, Sep 15 2:01 pm$149.99, Sep 11 - Sep 19$89.99, Sep 17 - Sep 19$143.95, Sep 21 12:13 pm$84.99, Sep 21 12:13 pm$149.99, Sep 23 - Sep 25$84.90, Sep 23 12:18 pm$149.99, Sep 23 - Sep 25$84.00, Sep 25 12:13 pm$114.99, Sep 27 - Oct 5$84.99, Sep 27 11:59 am$114.99, Sep 27 - Oct 5$74.99, Oct 1 1:08 pm$114.99, Sep 27 - Oct 5$69.99, Oct 3 2:50 pm$114.99, Sep 27 - Oct 5$83.00, Oct 5 4:53 pm$149.99, Oct 7 - Oct 14$83.99, Oct 7 6:55 pm$149.99, Oct 7 - Oct 14$79.99, Oct 9 9:42 pm$149.99, Oct 7 - Oct 14$78.00, Oct 11 11:35 pm$149.99, Oct 7 - Oct 14$74.00, Oct 14 12:14 am$143.00, Oct 16 - Oct 17$69.99, Oct 16 - Oct 17$142.00, Oct 19 11:09 pm$82.59, Oct 19 11:09 pm$141.99, Oct 21 10:51 pm$69.99, Oct 21 10:51 pm$141.95, Oct 23 - Oct 31$82.59, Oct 23 - Oct 25$141.95, Oct 23 - Oct 31$74.99, Oct 27 - Nov 2$139.99, Nov 2 10:16 pm$74.99, Oct 27 - Nov 2$139.95, Nov 4 - Nov 9$79.99, Nov 4 - Nov 7$139.95, Nov 4 - Nov 9$82.59, Nov 9 4:39 am$137.89, Nov 11 - Nov 13$74.49, Nov 11 6:56 am$137.89, Nov 11 - Nov 13$79.00, Nov 13 9:07 am$134.99, Nov 15 11:52 am$75.36, Nov 15 11:52 am$134.80, Nov 17 - Nov 19$79.00, Nov 17 - Nov 19$120.00, Nov 22 - Nov 24$70.00, Nov 22 3:23 am$120.00, Nov 22 - Nov 24$72.00, Nov 24 - Nov 26$134.80, Nov 26 - Dec 8$72.00, Nov 24 - Nov 26$134.80, Nov 26 - Dec 8$69.49, Nov 29 - Dec 1$134.80, Nov 26 - Dec 8$82.59, Dec 3 - Dec 6$134.80, Nov 26 - Dec 8$79.99, Dec 8 10:56 pm$134.99, Dec 11 - Jan 13$77.99, Dec 11 1:16 pm$134.99, Dec 11 - Jan 13$76.99, Dec 14 - Dec 16$134.99, Dec 11 - Jan 13$72.00, Dec 19 6:43 am$134.99, Dec 11 - Jan 13$65.00, Dec 21 6:34 pm$134.99, Dec 11 - Jan 13$75.00, Dec 24 5:16 am$134.99, Dec 11 - Jan 13$74.28, Dec 27 - Dec 29$134.99, Dec 11 - Jan 13$76.99, Dec 31 11:36 pm$134.99, Dec 11 - Jan 13$77.98, Jan 3 9:58 am$134.99, Dec 11 - Jan 13$76.98, Jan 5 8:19 pm$134.99, Dec 11 - Jan 13$79.99, Jan 8 - Jan 10$134.99, Dec 11 - Jan 13$82.89, Jan 13 7:42 am$129.99, Jan 15 - Jan 20$80.95, Jan 15 8:06 pm$129.99, Jan 15 - Jan 20$75.00, Jan 18 9:09 am$129.99, Jan 15 - Jan 20$80.95, Jan 20 10:21 pm$119.99, Jan 23 - Jan 28$77.33, Jan 23 12:03 pm$119.99, Jan 23 - Jan 28$79.95, Jan 26 - Jan 31$129.99, Jan 31 - Feb 29$79.95, Jan 26 - Jan 31$129.99, Jan 31 - Feb 29$79.85, Feb 2 - Feb 10$129.99, Jan 31 - Feb 29$78.99, Feb 13 2:44 am$129.99, Jan 31 - Feb 29$74.99, Feb 15 7:55 pm$129.99, Jan 31 - Feb 29$74.79, Feb 18 1:12 pm$129.99, Jan 31 - Feb 29$69.95, Feb 21 6:45 am$129.99, Jan 31 - Feb 29$67.94, Feb 24 - Feb 29$120.99, Mar 5 - Apr 10$67.93, Mar 5 - Mar 12$120.99, Mar 5 - Apr 10$65.99, Mar 18 7:41 am$120.99, Mar 5 - Apr 10$68.99, Mar 24 8:37 am$120.99, Mar 5 - Apr 10$72.00, Mar 30 - Apr 10

Price Details

3rd Party New

Latest $120.99 14 hrs ago
Highest $158.70 Jan 13, '14
Lowest $70.00 Aug 21, '15
Average $120.99 (30d avg)
$125.78 (90d avg)
$131.18 (180d avg)
$133.09 (365d avg)
$134.10 (Lifetime average)
Added Dec 18, 2013

3rd Party Used

Latest $72.00 14 hrs ago
Highest $105.25 Oct 28, '14
Lowest $1.29 May 26, '15
Average $69.33 (30d avg)
$73.33 (90d avg)
$74.73 (180d avg)
$73.63 (365d avg)
$75.59 (Lifetime average)
Added Dec 18, 2013

Product Description

Computer algebra system; official AP calculus review questions on the enclosed product CD. Graphing functions include parametric, polar, sequence, differential equations, slope fields, RK, Euler, contour and implicit plotting, and more. Includes: EE-Pro* software for electrical engineering

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