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Calculator Community => TI Calculators => General Calculator Help => Topic started by: Jake Chas on March 10, 2014, 03:38:23 pm

Title: Can you install a program to make a nspire CX into a CAS?
Post by: Jake Chas on March 10, 2014, 03:38:23 pm
Subject says it all but if you can not are there any good programs to help me solve logs on a Ti-89?
Title: Re: Can you install a program to make a nspire CX into a CAS?
Post by: Hayleia on March 10, 2014, 03:51:42 pm
There's nLaunch to install CAS on a non-CAS calc, but it only works on hardware revisions that are between A and I. Check at the back of your calculator the line looking like P-0313J. If you have a J like in the example, forget about it. If you have a letter between A and I instead of a J (don't care about the numbers), then it might be possible.
Title: Re: Can you install a program to make a nspire CX into a CAS?
Post by: Jake Chas on March 10, 2014, 03:56:41 pm
YES! it say P-0511B
Title: Re: Can you install a program to make a nspire CX into a CAS?
Post by: Jake Chas on March 10, 2014, 04:02:17 pm
What do I need to do now?
Title: Re: Can you install a program to make a nspire CX into a CAS?
Post by: willrandship on March 10, 2014, 04:03:03 pm
Also, you can solve logs on the TI-89 iirc.

http://www.youtube.com/watch?v=dR_iPKXADAc (http://www.youtube.com/watch?v=dR_iPKXADAc)
Title: Re: Can you install a program to make a nspire CX into a CAS?
Post by: Hayleia on March 10, 2014, 04:11:17 pm
Check your operating system (ON, 5, 4). If it is 3.1 or 3.2.3, the procedure is easier than if it is 3.2.4 or 3.6.
Title: Re: Can you install a program to make a nspire CX into a CAS?
Post by: Jake Chas on March 10, 2014, 04:22:21 pm
my version is 3.0.2.1791
Title: Re: Can you install a program to make a nspire CX into a CAS?
Post by: Sorunome on March 10, 2014, 04:26:08 pm
for logs:
If you have log4(5)
Then you could just enter
ln(5)/ln(4)
Title: Re: Can you install a program to make a nspire CX into a CAS?
Post by: Jake Chas on March 10, 2014, 04:52:42 pm
I mean for log3(1)\(3x) how would I solve that? I also have a Ti-89 titanium.

Also if you know a program that can solve it and show me the steps, that would be great, also thank you so much for your help.
Title: Re: Can you install a program to make a nspire CX into a CAS?
Post by: Hayleia on March 10, 2014, 05:01:55 pm
Quote from: Jake Chas on March 10, 2014, 04:22:21 pm
my version is 3.0.2.1791
Ok, then just follow those instructions (https://tiplanet.org/forum/viewtopic.php?t=11019&lang=en). CX instructions are in French but with Google Translate (or better) and with non-CX instructions, I am sure you can understand what evry sentence mean.
Title: Re: Can you install a program to make a nspire CX into a CAS?
Post by: Sorunome on March 10, 2014, 05:05:58 pm
Well, you do this:
solve((ln(1)/ln(3))/(3*x)=0,x)
and you will get 'true' because for every x that term will be 0, as ln(1)/ln(3) is 0 and thus log3(1) is 0.
Title: Re: Can you install a program to make a nspire CX into a CAS?
Post by: Jake Chas on March 10, 2014, 05:17:30 pm
I cant do solve it says its a CAS program, thats why im trying to change it or get different software
Title: Re: Can you install a program to make a nspire CX into a CAS?
Post by: willrandship on March 10, 2014, 05:18:07 pm
I think he meant for TI-89. It also has the solve function, and it uses the same syntax.
Title: Re: Can you install a program to make a nspire CX into a CAS?
Post by: Sorunome on March 10, 2014, 05:19:34 pm
Yes, i meant for the TI-89 as you asked how to do logs with it.
Title: Re: Can you install a program to make a nspire CX into a CAS?
Post by: Jake Chas on March 10, 2014, 05:22:00 pm
ok will do, umm what will it say its the answer is 8 or something
Title: Re: Can you install a program to make a nspire CX into a CAS?
Post by: Sorunome on March 10, 2014, 05:24:17 pm
then it will tell you that answer:
logb(n) = ln(n) / ln(b)
That conversion is always valid, thanks to math, and thus you just have to input your logarithms like that then.
Title: Re: Can you install a program to make a nspire CX into a CAS?
Post by: willrandship on March 10, 2014, 05:24:55 pm
That depends on how you phrase the input. When using solve() you need to put it in terms of a variable.

solve(log(x,2) = 2,x) will solve for x, saying x = 4


TI-89 log supports the log(entry,base) syntax btw
Title: Re: Can you install a program to make a nspire CX into a CAS?
Post by: Sorunome on March 10, 2014, 05:25:32 pm
The thing is that the TI-89 doesn't have log(n,base), you have to do ln(n) / ln(b)

EDIT: Apparently I'm using an outdated OS, so i guess try log(n,base) first, if that doesn't work then fallback to ln(n) / ln(base)
Title: Re: Can you install a program to make a nspire CX into a CAS?
Post by: Jake Chas on March 10, 2014, 05:41:39 pm
how do I get the nless and nlauch files thats this post is talking about

https://tiplanet.org/forum/viewtopic.php?t=11019&lang=en
Title: Re: Can you install a program to make a nspire CX into a CAS?
Post by: Hayleia on March 10, 2014, 05:46:57 pm
There's a search bar (two actually) on the left on TI Planet ;)
Title: Re: Can you install a program to make a nspire CX into a CAS?
Post by: pbfy0 on March 10, 2014, 05:53:00 pm
To add  CAS support: