TI-30 Calculator Help: Solve Problems Easily

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SUMMARY

The discussion focuses on troubleshooting input issues with the TI-30 calculator, specifically regarding the entry of expressions involving the mathematical constant "e" and square roots. Users emphasize the importance of using parentheses correctly, as improper placement can lead to incorrect calculations. The recommended input format for complex expressions includes ensuring that parentheses are added manually where necessary, such as in e^(5√(2)-2π). Additionally, users clarify that the negative key should not be confused with the subtraction operation.

PREREQUISITES
  • Understanding of basic mathematical operations and notation
  • Familiarity with the TI-30 calculator functions
  • Knowledge of using parentheses in mathematical expressions
  • Basic understanding of exponential functions and the constant "e"
NEXT STEPS
  • Research proper usage of parentheses in mathematical expressions
  • Learn advanced functions of the TI-30 calculator
  • Explore the mathematical constant "e" and its applications
  • Practice entering complex expressions on the TI-30 calculator
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Students, educators, and anyone using the TI-30 calculator for mathematical computations, particularly those dealing with exponential functions and complex expressions.

pexterra
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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

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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.

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

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