TI-30 Calculator Help: Solve Problems Easily

  • Context: MHB 
  • Thread starter Thread starter pexterra
  • Start date Start date
  • Tags Tags
    Calculator
Click For Summary

Discussion Overview

The discussion revolves around troubleshooting the use of a TI-30 calculator for solving mathematical problems, particularly focusing on the correct input methods for expressions involving the mathematical constant e and square roots. Participants share their experiences and seek assistance with specific input issues.

Discussion Character

  • Technical explanation
  • Homework-related

Main Points Raised

  • One participant expresses difficulty in entering expressions involving e, particularly when e is not in the exponent.
  • Several participants suggest using parentheses to correctly format the input for the calculator.
  • There is mention of confusion regarding the calculator's behavior when using the square root function, which automatically adds parentheses.
  • One participant questions how to input e in the exponent correctly, noting that using 2nd->LN does not yield the desired result.
  • Another participant proposes that removing the "^" symbol after pressing 2nd->LN might be a solution, but this is met with skepticism as it does not seem to work for others.
  • A specific input example is provided: e^(5√(2)-2π) to illustrate the correct format.

Areas of Agreement / Disagreement

Participants generally agree on the need for parentheses in inputting expressions, but there remains uncertainty and disagreement regarding the correct method to input e in the exponent and the behavior of the calculator when using certain functions.

Contextual Notes

Some participants mention specific issues with the calculator's input method, such as the automatic addition of parentheses and the inability to remove certain symbols, indicating potential limitations in the calculator's design or user interface.

pexterra
Messages
5
Reaction score
0
I can do some of the problems on this, but some I can't figure out. The answers on these listed I am getting wrong, I covered up the ones I know. I am obviously making a mistake typing them in my calculator. The ones with the e not in the exponent but the base, I can't figure out how to enter that. I use 2nd-LN for e^.

Any help? My calculator is a ti-30

khUt5yK.jpg
XBE2yhK.jpg


ibuAi5O.jpg
 
Physics news on Phys.org
You need to use parentheses.

Try the input: e^(5√2-2$\pi$).
 
Pranav said:
You need to use parentheses.

Try the input: e^(5√2-2$\pi$).

When i hit the 2nd and x^2 giving me my square root sign it adds a parenthesis before the 2 and i can't get rid of it. I think that's messing it up.see

qUc2NAl.jpg
 
pexterra said:
When i hit the 2nd and x^2 giving me my square root sign it adds a parenthesis before the 2 and i can't get rid of it.

Manually add one more parentheses after 2 i.e e^(5√(2)-2$\pi$).
 
Pranav said:
Manually add one more parentheses after 2 i.e e^(5√(2)-2$\pi$).

Thank you! I was hitting the negative key instead of the subtraction also.

How do the ones with the e in the exponent work? i can't find an e that does that?
 
It looks like you need a closing bracket at the very end of the expression.
 
I got it almost all figured out!

One last question, how do i get the "e" in the exponent like that? I don't think it's 2nd->LN because that would put it at e^ again.

?

DyMjxYf.jpg
 
pexterra said:
I got it almost all figured out!

One last question, how do i get the "e" in the exponent like that? I don't think it's 2nd->LN because that would put it at e^ again.

?

I have not used that calculator before but can't you simply remove the "^" symbol after you press 2nd->LN? If you can't, write it as e^1.
 
Pranav said:
I have not used that calculator before but can't you simply remove the "^" symbol after you press 2nd->LN? If you can't, write it as e^1.

No, it won't let me just remove the ^ symbol sadly. here is the way you said to add the e on the bottom problem. The answer is coming out wrong.

im posting it in 2 pictures so you can see the whole problem i typed in.

JBvMEXr.jpg

1ysNUuV.jpg
 
  • #10
Try it as 10^(3e^(1)-4√(3)).
 

Similar threads

  • · Replies 4 ·
Replies
4
Views
16K
  • · Replies 5 ·
Replies
5
Views
853
  • · Replies 2 ·
Replies
2
Views
3K
Replies
4
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 10 ·
Replies
10
Views
4K
  • · Replies 2 ·
Replies
2
Views
917
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 3 ·
Replies
3
Views
1K
  • · Replies 1 ·
Replies
1
Views
3K