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Ti-BASIC nSpire CAS issue

Started by geekpersonman, November 11, 2017, 10:00:56 PM

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November 11, 2017, 10:00:56 PM Last Edit: November 11, 2017, 10:02:37 PM by geekpersonman
I have been trying to write a nSpire function in TI-BASIC to automate newton's method, but I have run in to troubles trying to get it to work like a lot of native nspire functions where one argument is an expression and the other is the variable you want the function to look at. It will only accept a variable to look at only if I define it explicitly as a local, but it can choose between all the ones I have created as locals, it is a little hard to explain, so I will put the code below (f is a function (as a string), var is variable, s is the start point, I is the iterations):
Define LibPub nmethd(f,var,s,i)=
:Local g,gg,lin,ni,k
:Local x,y,θ,t  © I don't want to have to put every possible variable you can use on this line, if I don't include it, it brings up an error
:If i=1 Then
:  Return lin
:  nmethd(f,var,lin,i-1)

DJ Omnimaga

Hm I wonder if @Adriweb might know? Not many people ask or do Nspire Basic in the last few years it seems.
  • Calculators owned: TI-84 Plus C Silver Edition, TI-84 Plus CE, Casio fx-CG10, HP Prime, fx 1.0 Plus, fx-7400G Plus, fx-9750G Plus, fx-9860G, HP 39gII
  • Consoles, mobile devices and vintage computers owned: Huawei P30 Lite

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