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November 01, 2025, 04:22:03 pm
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Author Topic: Which ti-nspire version?  (Read 1339 times)  Share 

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bobisnotmyname

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Which ti-nspire version?
« on: March 02, 2015, 09:45:23 am »
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Hey, guys
I'm using the ti-nspire version 3.0.3.1791 and I notices that I could not factorise a function properly (the calculator just gave me the function that I put in). My friend however has a newer version 3.1....... and his could factorise the question. So my question is, does updated versions do that sort of thing, being able to factorise equations that older versions couldn't?
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99.90 pls

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Re: Which ti-nspire version?
« Reply #1 on: March 02, 2015, 08:50:57 pm »
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Version shouldn't make a significant difference.

What expression are you trying to factorise? Try to add ,x to the end of the function as well. For instance, factor(x^2 + 2x,x).

Also try cFactor(x^2 + 2x,x) or cFactor(x^2 + 2x).
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bobisnotmyname

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Re: Which ti-nspire version?
« Reply #2 on: March 02, 2015, 09:15:07 pm »
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Quote from: 99.90 pls on March 02, 2015, 08:50:57 pm
Version shouldn't make a significant difference.

What expression are you trying to factorise? Try to add ,x to the end of the function as well. For instance, factor(x^2 + 2x,x).

Also try cFactor(x^2 + 2x,x) or cFactor(x^2 + 2x).
cFactor(x^3-4x^2+14x-21)
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99.90 pls

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Re: Which ti-nspire version?
« Reply #3 on: March 02, 2015, 09:16:35 pm »
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Quote from: bobisnotmyname on March 02, 2015, 09:15:07 pm
cFactor(x^3-4x^2+14x-21)

Adding ,x solves the problem, although you probably want to set your calculator to polar form.
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bobisnotmyname

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Re: Which ti-nspire version?
« Reply #4 on: March 02, 2015, 09:27:03 pm »
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Quote from: 99.90 pls on March 02, 2015, 09:16:35 pm
Adding ,x solves the problem, although you probably want to set your calculator to polar form.
Did your answer have "normal" factors or some crazy ones :). cause i just get these really messy factors
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99.90 pls

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Re: Which ti-nspire version?
« Reply #5 on: March 02, 2015, 09:29:09 pm »
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Quote from: bobisnotmyname on March 02, 2015, 09:27:03 pm
Did your answer have "normal" factors or some crazy ones :). cause i just get these really messy factors

Yeah, mine are messy too. I think it means that it's not something which can be expressed as an exact value.
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bobisnotmyname

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Re: Which ti-nspire version?
« Reply #6 on: March 02, 2015, 09:32:21 pm »
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Quote from: 99.90 pls on March 02, 2015, 09:29:09 pm
Yeah, mine are messy too. I think it means that it's not something which can be expressed as an exact value.
OK, thanks a lot. I just thought my calculator was playing up, but mine isn't the only one. I will try to find the problem out tomorrow. Again thanks :)
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Stevensmay

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Re: Which ti-nspire version?
« Reply #7 on: March 03, 2015, 12:34:24 am »
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I'm not sure there is something wrong so much as the equation just doesn't factorize nicely.

There isn't really a nicer way of writing (x-2.09799) (x-(0.951007+3.01748 i)) (x-(0.951007-3.01748 i))
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bobisnotmyname

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Re: Which ti-nspire version?
« Reply #8 on: March 03, 2015, 09:55:15 am »
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thanks for your help guys I fixed the problem, just had a wrong number in the function is all. Again thanks for your help :)
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