WP 34S solve an integral
Post: #20
 BarryMead Senior Member Posts: 416 Joined: Feb 2014
RE: WP 34S solve an integral
(04-24-2015 12:34 PM)Dieter Wrote:
Code:
LBL A STO 00      //Save target integral result desired DROP        //Lower stack to get Upper/Lower solve guess bounds SLV 00 RTN ERR 20      //If solve fails to find a root show this error LBL 00  0 ∫ 01      // ∫ from x to 0 = –∫ from 0 to x  RCL+ 00   // 10 – ∫ RTN LBL 01 x² RTN
Very cleaver optimization. I knew that my original program was clumsy, and non-optimal. I did that on purpose to make it as clear and obvious as possible how to turn the original idea into a program. Using reversed integral bounds (to make the integral negative), and adding a positive target value is equivalent to subtracting a target, and the ability of solve to converge regardless of the sign of the error also can make the program more compact. Congrats on how small you made the program.
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 Messages In This Thread WP 34S solve an integral - lrdheat - 04-23-2015, 07:27 PM RE: WP 34S solve an integral - lrdheat - 04-23-2015, 08:43 PM RE: WP 34S solve an integral - BarryMead - 04-23-2015, 08:50 PM RE: WP 34S solve an integral - BarryMead - 04-23-2015, 09:05 PM RE: WP 34S solve an integral - Dieter - 04-24-2015, 12:34 PM RE: WP 34S solve an integral - BarryMead - 04-24-2015 02:46 PM RE: WP 34S solve an integral - CR Haeger - 04-23-2015, 10:28 PM RE: WP 34S solve an integral - BarryMead - 04-23-2015, 10:34 PM RE: WP 34S solve an integral - Dieter - 04-23-2015, 10:46 PM RE: WP 34S solve an integral - Marcus von Cube - 04-24-2015, 08:22 AM RE: WP 34S solve an integral - walter b - 04-24-2015, 08:57 AM RE: WP 34S solve an integral - CR Haeger - 04-24-2015, 01:24 PM RE: WP 34S solve an integral - Dieter - 04-24-2015, 12:16 PM RE: WP 34S solve an integral - CR Haeger - 04-24-2015, 01:01 PM RE: WP 34S solve an integral - Dieter - 04-24-2015, 01:09 PM RE: WP 34S solve an integral - rprosperi - 04-24-2015, 05:53 PM RE: WP 34S solve an integral - Thomas_Sch - 04-24-2015, 06:22 PM RE: WP 34S solve an integral - Dieter - 04-24-2015, 06:37 PM RE: WP 34S solve an integral - Dieter - 04-25-2015, 10:48 AM RE: WP 34S solve an integral - BarryMead - 04-25-2015, 06:59 PM RE: WP 34S solve an integral - Dieter - 04-25-2015, 08:54 PM RE: WP 34S solve an integral - lrdheat - 04-24-2015, 02:11 AM RE: WP 34S solve an integral - Thomas_Sch - 04-24-2015, 06:19 AM RE: WP 34S solve an integral - CR Haeger - 04-24-2015, 01:20 PM RE: WP 34S solve an integral - Thomas_Sch - 04-24-2015, 07:07 PM RE: WP 34S solve an integral - Dieter - 04-24-2015, 07:17 PM RE: WP 34S solve an integral - Thomas_Sch - 04-24-2015, 07:30 PM RE: WP 34S solve an integral - walter b - 04-24-2015, 10:12 PM RE: WP 34S solve an integral - Thomas_Sch - 04-24-2015, 10:27 PM RE: WP 34S solve an integral - lrdheat - 04-25-2015, 09:09 PM

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