Actually I just thought about it and figured it out! Just solve for x and find the domain, y, which will be the range of the original function! For instance, x^2-4=y, solve for y, or just type solve, the equation, y, and you get x=+-sqrt(y+4) and then find the domain, y, which will be the range of x^2-4! It makes perfect sense because the domain of the y=x is the range of x=y, and vice versa! Make a video about this!
Guys this doesn't work, domain works perfectly, but for range it just gives you the wrong answer. For example: find range of (squareroot x+6). It will just say negative infinite to positive infinite or R. When you sketch it and do it by hand, it's actually R plus, or (0,positive infinite)
I know I'm very late but for viewers now, try doing solve(squareroot x+6=y,x), making x subject, and then find domain of that. Basically you are going to find the domain of the inverse, which is the range of the function. Works for me.
is there a special setting that you use when you do the range of log base 3 (x^2-9),y) because when you plug it in it gives you a list of a bunch of ranges but on mine it only gave me two ranges.
Hey guys this doesn't actually work for the range. If you want to know how to find both, write this function into your cas and then it'll work: (to write a function open a calculator page and press menu,9,1,1. Make sure the type is "Function") Define bounds(m)= Func Local a,b,c domain(m,x)->a solve(m=y,x)->b domain(b,y)->c return {a,c EndFunc Then once you have saved it (press menu,2,1) go back over to the calculator page and type "function name" which in this case is "bounds()" and as the parameter give it a function. For example: bounds(4/(x-1)+2) will return: {x!=1,y!=2} Hope this helps!
You can find the range by solving for x, and then finding the domain, y, of the function in terms of x, which will be the range of the original, y. I just figured this out. I'm an upcoming high school junior.
charlie Lindelof i will, i try new things on it im trying to program it for certain things I'm teaching myself and practicing precalculus at home over the summer, without a teacher, obviously, thanks to this "beast" and not to forget you, thanks a lot for helping me! I'll inform more who own this "mathematical handheld laptop" about you!
It doesn't work with range it says all real numbers every time, and that's not always true, like sqrt(x)-2 the range will be y>=-2 can you explain why it's doing this
Gautam Gireesh damn I made this comment 2 years ago. I don't even use this calculator anymore! I don't have any math classes so I let my brother use it
Thank you so much for posting these videos and for being so concise and thorough. You are literally getting me through Calculus.
Actually I just thought about it and figured it out! Just solve for x and find the domain, y, which will be the range of the original function! For instance, x^2-4=y, solve for y, or just type solve, the equation, y, and you get x=+-sqrt(y+4) and then find the domain, y, which will be the range of x^2-4! It makes perfect sense because the domain of the y=x is the range of x=y, and vice versa! Make a video about this!
Guys this doesn't work, domain works perfectly, but for range it just gives you the wrong answer. For example: find range of (squareroot x+6). It will just say negative infinite to positive infinite or R. When you sketch it and do it by hand, it's actually R plus, or (0,positive infinite)
I know I'm very late but for viewers now, try doing solve(squareroot x+6=y,x), making x subject, and then find domain of that.
Basically you are going to find the domain of the inverse, which is the range of the function. Works for me.
that ringing sound at 2:48 somehow became binaural with my speakers and it sounds exactly like someone is ringing a bell at my house
wow, can't wait to check out other vids... thanks
can you just find the domain of the inverse of the function
and thus get the range of the original function
yeah that works
Only if the function is one to one
is there a special setting that you use when you do the range of log base 3 (x^2-9),y) because when you plug it in it gives you a list of a bunch of ranges but on mine it only gave me two ranges.
in fact it seems to be a problem with my cas whenever i do any function it gives me an "Error:Domain error" or "Error:Argument error".
Michael remember if you can do calculus I you can def do calculus II and III. We need more great math people. CL
thank you so much charlie! this is the best thing ever, especially for precalculus! :D
Now I have to go back and check. Thanks for checking the details!
Micael Ti-Nspire is a GREAT calculator, the CAS is just a little more tech
i'm always glad to hear from you CHEERS
Thanks man and here i am just finding out what my calculator can really do.
Annnnnnyytthing you want
i opened up my student software on my computer and your system worked like a charm. Any ideas as to what is going on???
Is there any way to restrict the range?
Hey guys this doesn't actually work for the range. If you want to know how to find both, write this function into your cas and then it'll work: (to write a function open a calculator page and press menu,9,1,1. Make sure the type is "Function")
Define bounds(m)=
Func
Local a,b,c
domain(m,x)->a
solve(m=y,x)->b
domain(b,y)->c
return {a,c
EndFunc
Then once you have saved it (press menu,2,1) go back over to the calculator page and type "function name" which in this case is "bounds()" and as the parameter give it a function. For example:
bounds(4/(x-1)+2)
will return:
{x!=1,y!=2}
Hope this helps!
Really good video but can i do this with the T.I. NSPIRE (non cas)
how so???
no problem... goto texas instruments website and down load new os 3.2 to ur calc. its super easy. TRy iT
Matt thanks for the support!!!
It says "unsupported function" this function requires Computer Algebra System. Try TI-Nspire CAS. How do I do this?
+DigitalPatronus you have the ti nspire cx, you wont be able to do this problem unless if your TI nspire cx is the CAS version
Jacob Torres thats dumb. is there anyway i can do it even if its using more steps
the graphing method is the only way I know of other than this.
i tried this one "domain(abs(x)-2,y)" and got back all reals for y. Shouldn't this be y>=-2?
it wont work for me!! every time i type it, it says Error: Variable is not defined...
u dont have a cas model
I haven't tried yet...NOW I MUST lol
btw it is the range thing that is not working not the domain. That works well.
Hi, Charlie are you able to find the domain on the calculator if it has set of rules. Ex: 2x^2+, -1≤ x
+tocas Lh you can set up an interval
Do you know how you can trace x or y on 3D graphing on Ti NSpire ? It seems to do only z tracing
how do you do this with a ti inspire cx II??
I think it works the same if you use nsolve Let me know
Can I find domain of the derivative within the DOMAIN command on the CAS?
just save d/dx as a function and then use Domain(
my domain is still italic how can i fix this?
When I type in domain it's still shown in italics. Is there another way? I got the older model CAS
can you just inverse the function and stick it into the domain to find the range
YES!!!!
I was looking for a quick hack...IT DOES NOT WORK CONSISTENTLY.. SoRrY
can you do absolute value, such as: |y|=x and find the domain?
Thank you so much!
is there an update video on finding the range on ti nspire cas??
No.. but make sure your OS is updated to at least 3.2
You can find the range by solving for x, and then finding the domain, y, of the function in terms of x, which will be the range of the original, y. I just figured this out. I'm an upcoming high school junior.
Austin keep me posted on your progress
charlie Lindelof i will, i try new things on it im trying to program it for certain things I'm teaching myself and practicing precalculus at home over the summer, without a teacher, obviously, thanks to this "beast" and not to forget you, thanks a lot for helping me! I'll inform more who own this "mathematical handheld laptop" about you!
There actually is.. Please search my channel. let me know
What about y=sqrt(2.x), the range would be wrong... Are you sure about that??
No I was wrong. I thought I had found a cheat, I didn't test it thoroughly enough. Sorry
Mine comes up with "error:Variable is not defined" and domain stays in italic.
Is your calculator a CAS? also make sure you use ,x
hey man i tried your range trick and i noticed that it does not work on rational functions. just thought you should know . Otherwise epic thinking.
This does not work for many functions. For example as for the range of sin(x) it says -infinity to +infinity
Domain should work, even if symbolically for all functions. Range is very inconsistent. Thanks for the good feedbacl
It doesn't work with range it says all real numbers every time, and that's not always true, like sqrt(x)-2 the range will be y>=-2 can you explain why it's doing this
The same situation for me too
I don't know how to solve that problem :(
Gautam Gireesh damn I made this comment 2 years ago. I don't even use this calculator anymore! I don't have any math classes so I let my brother use it
Austin Hernández
lmao, yeah i knew that
i was hoping that charlie would see and reply =p
@@austinhernandez2716 I got news for you buddy, two more years and we still don't got the answer
@@calebchoi6944 keeping this comment chain alive one generation of struggling math student after the other
how do you find the domain of 3 variables? x,y,z
go to menu 3d graphing
I assume this does not work on a CAS? domain does not work for me.
Domain works. However, the pattern I suggested for Range is not consistent. Sorry
yes i totally agree RANGE IS NOT CONSISTENT
hi I can't get domain, like I typed domain but it is still in Romain letters what can I do???
+이하은 you can find it without typing it there is a little button, near top right that lets you choose it from a pre-written list. let me know
Is your calculator a CAS. If so make sure you update your OS to at least 3.2. Let me know if you need help
domain(sin-1(x),y) doesn't give correct range , which is -pi/2 pi/2
Update os to >3.2 free on line
the n-spire will not do it must be a cas model
My do
the range part is fake
You are correct. I was hoping for an easy hack, NOPE
finding range of arcos and arcsin is just wrong
Not positive...try it and let me know. I'll spread the word, THANKS
Thank you so much!
Thanks