Calling function that call functions

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Calling function that call functions

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Razonar		#1 Posted : 02 April 2019 15:34:25(UTC)
Rank: Advanced Member Groups: Registered Joined: 28/08/2014(UTC) Posts: 1,356 Was thanked: 815 time(s) in 516 post(s)		Hi. I can't call a function which uses a call for functions too. How to solve that? Example in the attached. function_1v.sm (18kb) downloaded 24 time(s). Best regards. Alvaro.


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mkraska		#2 Posted : 02 April 2019 16:09:35(UTC)
Rank: Advanced Member Groups: Registered Joined: 15/04/2012(UTC) Posts: 1,984 Was thanked: 1124 time(s) in 721 post(s)		I guess f(a) isn't recognized as a function in the call df(f(a)...) as f(a) evaluates to a number, not a function. Use df(f(x)... instead, with x being something undefined. Edited by user 02 April 2019 16:11:22(UTC) \| Reason: Not specified
		Martin Kraska Pre-configured portable distribution of SMath Studio: https://smath.com/wiki/SMath_with_Plugins.ashx

1 user thanked mkraska for this useful post.		on 02/04/2019(UTC)
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Razonar		#3 Posted : 02 April 2019 16:13:54(UTC)
Rank: Advanced Member Groups: Registered Joined: 28/08/2014(UTC) Posts: 1,356 Was thanked: 815 time(s) in 516 post(s)		Hi Martin. You're right! Thanks. Best regards. Alvaro.


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Razonar		#4 Posted : 02 April 2019 16:50:57(UTC)
Rank: Advanced Member Groups: Registered Joined: 28/08/2014(UTC) Posts: 1,356 Was thanked: 815 time(s) in 516 post(s)		Hi. Again, here ... how to solve this other? bound_ode.sm (17kb) downloaded 17 time(s). Thanks in advanced Alvaro.


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Jean Giraud		#5 Posted : 02 April 2019 17:11:12(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)		Originally Posted by: Razonar Hi. I can't call a function which uses a call for functions too. How to solve that? Hola Alvaro, I understand what you are attempting, sorry: can't doctor quick. IMHO, a better approach would be the coding of the Mathcad numerical derivative, which returns as scalar as well. The beginning of the code was given Mathcad 8 Pro. It is in fact more advanced than the rough Newton as proposed. If you are willing: I can retrieve this code. Buenos dias ... Jean Derivative erf(x).sm (7kb) downloaded 18 time(s).


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Jean Giraud		#6 Posted : 02 April 2019 17:24:38(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)		... Ridder numerical derivative code. Unsolved Ridder Deriv.sm (43kb) downloaded 20 time(s).


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