Convert 1.95e7m - Get Answers Now

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Discussion Overview

The discussion revolves around the conversion and interpretation of the notation 1.95e7m, specifically addressing its meaning in scientific notation and the potential confusion between lowercase 'e' and uppercase 'E'.

Discussion Character

  • Technical explanation, Debate/contested

Main Points Raised

  • Some participants clarify that 1.95e7 means 1.95 × 10^7 and that 'm' stands for meters.
  • There is a question about whether 'e' and 'E' are different, with one participant suggesting that they represent different values (e.g., e as Euler's number and E as a power of ten).
  • Others argue that in the context of scientific notation, both 'e' and 'E' refer to exponentiation and can be used interchangeably.
  • One participant mentions that it is better to write in the form A.BC × 10^X to avoid confusion.
  • A historical note is made regarding calculators and how they display scientific notation, which may contribute to the use of 'e' or 'E'.
  • Another participant emphasizes that in calculators or computer contexts, 'e' or 'E' should not be confused with Euler's number.
  • One participant expresses understanding but notes that their calculator distinguishes between the two letters for exponentiation and the constant.

Areas of Agreement / Disagreement

Participants express differing views on the distinction between 'e' and 'E', with some asserting they are interchangeable in scientific notation while others maintain that they represent different concepts. The discussion remains unresolved regarding the implications of this distinction.

Contextual Notes

There are limitations in the discussion regarding the clarity of notation and the potential for confusion in different contexts, such as calculators versus written scientific notation.

Bcisewski
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Can someone help? It may seem elementary, but I have an application identifying a radius of 1.95e7m. What does the 1.95e7m convert to?
 
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exponential notation

Bcisewski said:
Can someone help? It may seem elementary, but I have an application identifying a radius of 1.95e7m. What does the 1.95e7m convert to?
1.95e7 means [itex]1.95 \times 10^7[/itex]. (And m = meters.)
 
1.95e7 is the same as 1.95x10^7?
 
Yes, they are the same.
 
hey guys but isn't "e" and "E" different. for example e1 = 2.718 and E1 = 10. if you want it to be the same as 1.95x10^7 then i suggest you use a capital E so as not to confuse.
 
cipher said:
hey guys but isn't "e" and "E" different. for example e1 = 2.718 and E1 = 10.
I've never seen it used that way. I've always seen 1.95e7 = 1.95E7 = [itex]1.95 \times 10^7[/itex]. In this context, I believe that e or E just stands for "exponent". (Personally, I always use E. :smile: )
 
Generally something in the form of [itex]A.BCeX[/itex], where X is an integer, is considered to be [itex]A.BC\times{10^{X}}[/itex], although this is not a definite rule. It is better to write it in the latter form to avoid confusion.
 
It's a calculator based tradition. Calculator's, especially your early LED's, weren't very good at displaying scientific notation the way you do on paper. It's displayed 1.95e7 or 1.95E7 on a spread sheet, as well, for the same reason.
 
cipher said:
hey guys but isn't "e" and "E" different. for example e1 = 2.718 and E1 = 10. if you want it to be the same as 1.95x10^7 then i suggest you use a capital E so as not to confuse.

As DocAl, Integral, Sirus, and BobG pointed out, whenever [itex]\text{e\ \or\ \E}[/itex] appear in this context (on a calculator or computer) it refers to a power of ten. It should not be confused with [itex]e[/itex], Euler's number, the irrational constant. Just thought I'd clarify that.
 
  • #10
ok i understand what you guys are saying, i just made the point because on my calculator the two of them are two different e's. the exponent is "E" and the constant is "e".
 

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