New guy and programming problem
08-27-2017, 05:43 PM (This post was last modified: 08-27-2017 06:04 PM by Dieter.)
Post: #4
 Dieter Senior Member Posts: 2,397 Joined: Dec 2013
RE: New guy and programming problem
(08-27-2017 05:12 PM)Gerson W. Barbosa Wrote:  For this task, no program is needed on the WP34S:
...
What resistor should be paralleled to a 100 ohm resistor so that the equivalent resistance is 32 ohm?

On the WP34S I just do

100 +/- [ENTER] 32 [g] || => 47.0588235294

With one of the above programs you just do
–100 [ENTER] 32 [XEQ]"PAR" => 47,0588...

Sure, it's the same formula. ;-)

(08-27-2017 05:12 PM)Gerson W. Barbosa Wrote:  Is there another calculator that offers this as a built-in function?

I don't know one. But I admit I never understood why this rather special function has been implemented on the 34s and even got direct keyboard access. OK, there are a few occasions when the parallel function may be used for other mathematical applications, but IMvHO others would have made more sense. For instance functions that accurately evaluate √(1+x²) – 1, or in addition to ex–1 a general ax–1 function. Or 1–sin(x) and 1–cos(x). Or √(x²+y²). And let's not forget the useful DIVMOD function that simultaneously returns both quotient and remainder. Some of these are part of the Boost math package, so they seem to make sense for others, too. ;-)

On the other hand the || function can be programmed easily in just four steps, cf. the examples above.

Dieter
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 Messages In This Thread New guy and programming problem - Skirmitch - 08-27-2017, 06:18 AM RE: New guy and programming problem - Dieter - 08-27-2017, 03:15 PM RE: New guy and programming problem - Gerson W. Barbosa - 08-27-2017, 05:12 PM RE: New guy and programming problem - Dieter - 08-27-2017 05:43 PM RE: New guy and programming problem - Paul Dale - 08-27-2017, 11:12 PM RE: New guy and programming problem - Dieter - 08-28-2017, 06:13 PM RE: New guy and programming problem - Paul Dale - 08-29-2017, 04:22 AM RE: New guy and programming problem - Garth Wilson - 08-27-2017, 09:14 PM RE: New guy and programming problem - Vtile - 09-01-2018, 07:28 PM RE: New guy and programming problem - John Keith - 08-27-2017, 05:52 PM RE: New guy and programming problem - Dieter - 08-27-2017, 06:28 PM RE: New guy and programming problem - Gerson W. Barbosa - 08-27-2017, 06:03 PM RE: New guy and programming problem - Dieter - 08-27-2017, 06:11 PM RE: New guy and programming problem - Gerson W. Barbosa - 08-27-2017, 06:23 PM RE: New guy and programming problem - pier4r - 08-27-2017, 07:52 PM RE: New guy and programming problem - Jlouis - 08-28-2017, 10:55 AM RE: New guy and programming problem - Skirmitch - 08-27-2017, 06:04 PM RE: New guy and programming problem - Skirmitch - 08-28-2017, 01:44 AM RE: New guy and programming problem - Paul Dale - 08-28-2017, 01:58 AM RE: New guy and programming problem - Skirmitch - 08-28-2017, 02:25 AM RE: New guy and programming problem - Paul Dale - 08-28-2017, 05:31 AM RE: New guy and programming problem - Skirmitch - 08-28-2017, 07:14 AM RE: New guy and programming problem - ndzied1 - 08-28-2017, 03:43 AM RE: New guy and programming problem - Paul Dale - 08-28-2017, 07:28 AM RE: New guy and programming problem - Logan - 08-28-2017, 02:20 PM RE: New guy and programming problem - Skirmitch - 08-28-2017, 06:11 PM RE: New guy and programming problem - Logan - 08-28-2017, 06:13 PM RE: New guy and programming problem - Thomas Klemm - 09-01-2018, 12:23 PM RE: New guy and programming problem - Albert Chan - 09-01-2018, 02:16 PM RE: New guy and programming problem - Albert Chan - 09-02-2018, 06:14 PM RE: New guy and programming problem - Albert Chan - 09-02-2018, 09:21 PM RE: New guy and programming problem - sasa - 09-01-2018, 03:18 PM RE: New guy and programming problem - Albert Chan - 09-01-2018, 05:20 PM RE: New guy and programming problem - sasa - 09-01-2018, 05:33 PM RE: New guy and programming problem - Thomas Klemm - 09-01-2018, 04:28 PM RE: New guy and programming problem - Thomas Klemm - 09-02-2018, 07:33 PM RE: New guy and programming problem - Thomas Klemm - 09-02-2018, 09:33 PM RE: New guy and programming problem - Vtile - 09-02-2018, 09:40 PM RE: New guy and programming problem - Albert Chan - 09-03-2018, 10:32 PM

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