How to calculate the decimal power?

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Discussion Overview

The discussion revolves around the calculation of the square of a decimal number, specifically (0.212765957)². Participants explore different methods of performing this calculation, including the use of calculators and mathematical notation.

Discussion Character

  • Technical explanation, Mathematical reasoning, Homework-related

Main Points Raised

  • One participant queries how to calculate (0.212765957)², seeking clarification on the process.
  • Another participant suggests that the original poster may need assistance with using a calculator, questioning the use of a comma as a decimal separator.
  • A participant provides the result of the calculation as 0.045269352458115849.
  • Further elaboration is provided on the mathematical representation of the calculation, including alternative forms and the use of exponents.
  • Participants engage in correcting and refining the notation used in the mathematical expressions presented.

Areas of Agreement / Disagreement

There is no clear consensus on the best method for calculating the square of the decimal number, as participants present different approaches and clarifications without resolving the discussion.

Contextual Notes

Some assumptions about the use of decimal notation and the interpretation of exponents remain unaddressed, and there are unresolved mathematical steps in the explanations provided.

NickTesla
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(0,212765957)² = ?
 
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Do you want to know how to open the calculator on the device you were typing this?
And are you using a comma as separation sign for 0.2 = 1/5?
 
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Thank you, the result is
0,045269352458115849
 
NickTesla said:
(0,212765957)² = ?
You may have already learned how. Your base is a decimal number and your exponent is a natural number.
(0.212765957)^2
(212765957*10^-9)^2
(212765957)^2*(10^(-18))
but really, the easier way as already said, use a calculator.******
(0.212765957)^2
(212765957*10^{-9})^2
(212765957)^2*(10^{-18}), that negative eighteen is supposed to be an exponent.
Mod note: Fixed the exponent.
symbolipoint note: Thanks, Mod; now I fixed the negative nine exponent also.
 
Last edited:
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