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SmilesRising
By SmilesRising
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13 minutes ago, ben dover kid said:

im gonna say that ask your math/physic teachers. they'll tell ya. also see what others are using.

my teacher said that he uses this http://www.clasohlson.com/se/Kalkylator-Texas-TI-84-Plus/38-1184 but theres another version http://www.clasohlson.com/se/Kalkylator-Texas-TI-82-STATS/38-1658 is it worth going for the plus version?

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1 hour ago, smiles rising said:

my teacher said that he uses this http://www.clasohlson.com/se/Kalkylator-Texas-TI-84-Plus/38-1184 but theres another version http://www.clasohlson.com/se/Kalkylator-Texas-TI-82-STATS/38-1658 is it worth going for the plus version?

the one that your teacher uses is kinda same as mine without CAS. can't figure out whats different on the cheaper one since i can't get the other calculator in finnish language. use code  CLAS59877  10% off. 

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I personally prefer the Ti-nspire CAS. It got me through physics major and i love it. Ti-89 is great but I just like the interface of the Ti-nspire CAS. Also I think the CAS version is worth it.

You could download the Ti-nspire CAS software and trial it, it has an emulator of the calculator and you can test how it works for you. Also you could download emulators/apps for windows/android/ios (there are several) of ti89, hp 50g and others to test them. 

 

The CAS version has a Computer Algebra System (CAS), i have extensively used the CAS features like solving systems of equations, expanding expressions, solving expressions, factoring large expressions, finding maximum and minimum of functions in interval.. I guess there is somwhere an exhaustive list of differences and I'm not sure about the exact limitations of the non CAS version but my Ti nspire cas was one of my best investments. Saved my bacon several times. I remember I had to do very long Fourier transformations in an exam and fortunately I had loaded a program someone wrote that did like magic the fourier transforms and I could verify my answers. Also I always suffered from that thing where you are not entirely sure that you did that integral right so I would check with my Ti-nspire. Oh and the complex number operations are super useful. Also parametric plots and 3D plots were useful several times. 

Other feature of the Ti nspire CAS I found really usefull was programming scripts, I had various programs written for example one for searching in a database properties of elements so instead of looking for the value in a table and then use it in a calculation i could just write (just an example) 2+atMass(He)/2. Instead of searching for the value of the atomic mass i just entered it as a function.., Its just an example, its very flexible.  

 

Many Calculators offer similar functionalities and ti-84, ti-89 ti nspire, hp49g ,hp50g and some others even, my best advice is study the features, see if you need to graph funcitions or not, see if you need to program scripts or not or a CAS system for solving equations. Then compare the interfaces (HP and TI's are somewhat different). If you choose Ti my personal opinion is Ti nspire CAS because its the most new and has the latest technology, I am really happy with it. If you happen to find a ti-89 or other at a very good price or if you already knew how to use a ti-89 I wouldnt recommend switching to the CAS because its a fine calc too.

 

P.D. when solving equations, math problems Wolfram alpha also helped me a lot. And it has an app that is veery useful. 

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LOL this was my old calculator.

 

Expensive as fuck and huge but so useful in numerical analysis classes since I could program shit like Euler method, Runge-Kutta 4, and so on. Of course that programmablility meant I was never allowed to use it on exams though. Not when I could just store every equation and do integrals on it.

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9 hours ago, PeloyGeek said:

can't you just use one on your phone or is your teacher strict?

yeah because phone calculators are so powerful. oh wait..... and you can use them on exams. oh wait.... . phone calculator never replaces an actual calculator and the amount of functions it can do.

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Just now, ben dover kid said:

yeah because phone calculators are so powerful. oh wait..... and you can use them on exams. oh wait.... . phone calculator never replaces an actual calculator and the amount of functions it can do.

i tried to do a calculation on my phone and it gave me the answer "error" not going to use that again..

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12 hours ago, almondhive said:

I personally prefer the Ti-nspire CAS. It got me through physics major and i love it. Ti-89 is great but I just like the interface of the Ti-nspire CAS. Also I think the CAS version is worth it.

You could download the Ti-nspire CAS software and trial it, it has an emulator of the calculator and you can test how it works for you. Also you could download emulators/apps for windows/android/ios (there are several) of ti89, hp 50g and others to test them. 

 

The CAS version has a Computer Algebra System (CAS), i have extensively used the CAS features like solving systems of equations, expanding expressions, solving expressions, factoring large expressions, finding maximum and minimum of functions in interval.. I guess there is somwhere an exhaustive list of differences and I'm not sure about the exact limitations of the non CAS version but my Ti nspire cas was one of my best investments. Saved my bacon several times. I remember I had to do very long Fourier transformations in an exam and fortunately I had loaded a program someone wrote that did like magic the fourier transforms and I could verify my answers. Also I always suffered from that thing where you are not entirely sure that you did that integral right so I would check with my Ti-nspire. Oh and the complex number operations are super useful. Also parametric plots and 3D plots were useful several times. 

Other feature of the Ti nspire CAS I found really usefull was programming scripts, I had various programs written for example one for searching in a database properties of elements so instead of looking for the value in a table and then use it in a calculation i could just write (just an example) 2+atMass(He)/2. Instead of searching for the value of the atomic mass i just entered it as a function.., Its just an example, its very flexible.  

 

Many Calculators offer similar functionalities and ti-84, ti-89 ti nspire, hp49g ,hp50g and some others even, my best advice is study the features, see if you need to graph funcitions or not, see if you need to program scripts or not or a CAS system for solving equations. Then compare the interfaces (HP and TI's are somewhat different). If you choose Ti my personal opinion is Ti nspire CAS because its the most new and has the latest technology, I am really happy with it. If you happen to find a ti-89 or other at a very good price or if you already knew how to use a ti-89 I wouldnt recommend switching to the CAS because its a fine calc too.

 

P.D. when solving equations, math problems Wolfram alpha also helped me a lot. And it has an app that is veery useful. 

https://www.dustinhome.se/product/5010646174/raknare-ti-nspire-cx-cas-program?gclid=CjwKEAjwrvq9BRD5gLyrufTqg0YSJACcuF814urtA9TMOCQy-IV_zxsXWjnKbr69-S1bfB1_d9yBwRoCK43w_wcB&ssel=false&_ga=1.183542063.844698886.1469474858 is this the one you mean?

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3 hours ago, smiles rising said:

https://www.dustinhome.se/product/5010646174/raknare-ti-nspire-cx-cas-program?gclid=CjwKEAjwrvq9BRD5gLyrufTqg0YSJACcuF814urtA9TMOCQy-IV_zxsXWjnKbr69-S1bfB1_d9yBwRoCK43w_wcB&ssel=false&_ga=1.183542063.844698886.1469474858 is this the one you mean?

Yes, that is the one. There are two versions: Ti nspire CAS and Ti nspire CX CAS like the one in the link. The CX CAS is the newer version, it has color screen, rechargable batteries and more memory than the old model. I have the old model and I like it very much but I dont know if they still sell the non CX model. Also its not a cheap calculator, in my personal experience it was worth it but you have to think if it will work for you. I guess it depends on what you are goning to do with the calculator.

 

3 hours ago, ben dover kid said:

yeah because phone calculators are so powerful. oh wait..... and you can use them on exams. oh wait.... . phone calculator never replaces an actual calculator and the amount of functions it can do.

Also what ben dove kid said about the exams is true, generally you can't use your phone in an exam... but also the ti nspire CX CAs is a flashy calculator, it draws attention, and some teachers don't like you using it on exams. It depends on the teacher and in my experience it was just only once or twice in 5 years. Teachers sometimes don't let you use calculators with graphing capabilities and that includes ti89 and other big calculators.

13 hours ago, wrathoftheturkey said:

The 84 plus -- it's simple enough without much stuff you don't need

I agree with him. Not everyone uses all the stuff on the top tier calculators. I LOVE my ti nspire CAS but if you don't need all the features its not worth it. I found this link very usefull, it compares the features of the TI calculators. https://education.ti.com/en/us/product-resources/graphing_course_comparision

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37 minutes ago, almondhive said:

Yes, that is the one. There are two versions: Ti nspire CAS and Ti nspire CX CAS like the one in the link. The CX CAS is the newer version, it has color screen, rechargable batteries and more memory than the old model. I have the old model and I like it very much but I dont know if they still sell the non CX model. Also its not a cheap calculator, in my personal experience it was worth it but you have to think if it will work for you. I guess it depends on what you are goning to do with the calculator.

 

Also what ben dove kid said about the exams is true, generally you can't use your phone in an exam... but also the ti nspire CX CAs is a flashy calculator, it draws attention, and some teachers don't like you using it on exams. It depends on the teacher and in my experience it was just only once or twice in 5 years. Teachers sometimes don't let you use calculators with graphing capabilities and that includes ti89 and other big calculators.

I agree with him. Not everyone uses all the stuff on the top tier calculators. I LOVE my ti nspire CAS but if you don't need all the features its not worth it. I found this link very usefull, it compares the features of the TI calculators. https://education.ti.com/en/us/product-resources/graphing_course_comparision

im getting the TI-84 plus.. its advanced but not way too advanced.. 

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