How to Use Exponents and Roots on a Scientific Calculator?

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Discussion Overview

The discussion centers around using scientific calculators to compute roots and exponents, specifically addressing the calculation of the 12th root of a negative number and the correct input methods for various calculators. Participants share their experiences and seek clarification on the process.

Discussion Character

  • Technical explanation
  • Homework-related
  • Debate/contested

Main Points Raised

  • One participant expresses confusion about how to correctly input the expression .653846^1/12 on a scientific calculator, indicating a misunderstanding of exponentiation.
  • Another participant suggests that the method of input depends on the specific calculator model, providing an example for the Casio fx-83ES.
  • There is a mention of receiving an error when attempting to calculate the 12th root of a negative number, highlighting a potential issue with real number outputs.
  • A later reply discusses the possibility of evaluating the expression using the exponential function, suggesting a different approach to the problem.
  • Participants express uncertainty about whether the discussion is about the same problem or a new one regarding purchasing power calculations.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the correct method for calculating the desired expression, and there are multiple approaches and interpretations presented without resolution.

Contextual Notes

Some participants mention specific calculator models and their functions, which may not be universally applicable. There is also ambiguity regarding the nature of the calculations being discussed, particularly in relation to negative numbers and their roots.

Who May Find This Useful

Individuals seeking assistance with scientific calculator functions, particularly in relation to exponentiation and root calculations, may find this discussion beneficial.

goosey00
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On a scientific calculator, how do you get a root of a number for an exponiental? Ex.-.653846^1/12=
I was taking 1/12 and making it so I can make it exponent for .653846. Obviously wrong. What am I doing here??
 
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Re: exponiental problem

goosey00 said:
On a scientific calculator, how do you get a root of a number for an exponiental? Ex.-.653846^1/12=
I was taking 1/12 and making it so I can make it exponent for .653846. Obviously wrong. What am I doing here??

Largely depends on what calculator you have. On my Casio fx-83ES one would type
Code:
-0.653846 x[sup]y[/sup] ( 1 / 12)

although y is a box - can't show it on my keyboard.
 
Re: exponiental problem

SuperSonic4 said:
Largely depends on what calculator you have. On my Casio fx-83ES one would type
Code:
-0.653846 x[SUP]y[/SUP] ( 1 / 12)

although y is a box - can't show it on my keyboard.

Im still getting it wrong though. What do you get to check the answer
 
Re: exponiental problem

Maybe it's how I'm asking. It says simplify b=(squiggy equal sign).653846^1/12
 
Re: exponiental problem

Got it! Thank you!
 
Re: exponiental problem

goosey00 said:
Got it! Thank you!

Hi goosey00,

Welcome to MHB! :) When you make a post you might notice a yellow column on the right hand side. If you look to the top of this column and click "Scientific Calculator" then a calculator will popup where you can practice making these calculations. What did you get for your final answer?

Jameson
 
stuck again

Purchasing power=

For the orginal purchasing power f(t)=1.08 (.926127)
For the one part I got at f(t)= .40 (.931511)
They want me to know where they intersect. If you need more info, let me know
 
Re: stuck again

goosey00 said:
Purchasing power=

For the orginal purchasing power f(t)=1.08 (.926127)
For the one part I got at f(t)= .40 (.931511)
They want me to know where they intersect. If you need more info, let me know

I'm a little confused. Is this a new problem or the same one? If it's a new one then you can make a new thread in a different section of the site, but if it's still about using your calculator then let's continue the discussion here :)

Either way can you post the complete problem?
 
Re: stuck again

Jameson said:
I'm a little confused. Is this a new problem or the same one? If it's a new one then you can make a new thread in a different section of the site, but if it's still about using your calculator then let's continue the discussion here :)

Either way can you post the complete problem?
Will you back in about an hour. ? I will right when i get back
 
  • #10
Re: stuck again

goosey00 said:
Will you back in about an hour. ? I will right when i get back

Ok, I'll be around and someone will surely help you today. I am on this site every day at different times and so are many others so you don't need to every worry about no one reading your questions.
 
  • #11
goosey00 said:
On a scientific calculator, how do you get a root of a number for an exponiental? Ex.-.653846^1/12=
I was taking 1/12 and making it so I can make it exponent for .653846. Obviously wrong. What am I doing here??

1. Do you want to valuate

\displaystyle{\sqrt[12]{-.653846}}

You'll get an error message because an even root of a negative number has not a real value.

2. Do you want to valuate

(exp(-.653846))^(1/12)

Determine first \displaystyle{e^{-.653846} \approx 0.52}
and afterwards the 12th root.
 

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