MHB TI-30 Calculator Help: Solve Problems Easily

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The discussion centers on troubleshooting the use of a TI-30 calculator for entering mathematical expressions involving the constant "e." Users are experiencing difficulties with inputting expressions correctly, particularly when "e" is in the base or exponent. The key advice includes the necessity of using parentheses to structure the expressions properly, such as e^(5√(2)-2π). There is also a mention of confusion between the negative key and the subtraction operation, which affects the accuracy of the input. One user seeks clarification on how to input "e" in the exponent, with suggestions to remove the "^" symbol after using the 2nd->LN function or to write it as e^1 if necessary. Overall, the conversation highlights common pitfalls in calculator usage and emphasizes the importance of correct syntax for obtaining accurate results.
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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

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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.

?

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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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Try it as 10^(3e^(1)-4√(3)).
 

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