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Can any one explain the returned value "9.4817e+03" .

368 vues (au cours des 30 derniers jours)
mika
mika le 21 Mai 2014
Commenté : John D'Errico le 24 Déc 2022
Can any one tell me what's the meaning of this value because it appears frequently in matlab, what's e and can i move from this representation of that value to another
shortestPathLength =
9.4817e+03
thank you
Help is much appreciated
  2 commentaires
SADAGOBAN A
SADAGOBAN A le 12 Mar 2017
in generally e+03 means exponential base 10,here e+03 means 1000 the value for 9.4817e+03 means 9.4817*1000 and the value is 9481.7 (Note:incase of e-03 means 1/1000=0.0001)
Tracie Lin
Tracie Lin le 5 Fév 2019
Modifié(e) : Tracie Lin le 5 Fév 2019
Correction: e-03 = 1/1000 = 0.001

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Réponse acceptée

Image Analyst
Image Analyst le 21 Mai 2014
It's 9.4817 times 10 to the 3rd power, 9.4817 * 10^03 = 9481.7.
  3 commentaires
Image Analyst
Image Analyst le 21 Mai 2014
Modifié(e) : Image Analyst le 21 Mai 2014
By the way, the "e" stands for "exponent", which means the exponent of ten that it is.
Mahdi
Mahdi le 21 Mai 2014
You can also change the way the numbers are shown by using format. For example:
format long

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Plus de réponses (1)

GOHIL NIHAR AJITBHAI
GOHIL NIHAR AJITBHAI le 24 Déc 2022
how to write 1x10^(-2.3) or 1.e(-2.3)in matlab ?
  1 commentaire
John D'Errico
John D'Errico le 24 Déc 2022
Please don't ask a question in an answer to another question. Learn to ask a question instead, as a separate question.
What you need to understand is that 10^(-2.3) is not written as you seem to think it is. You cannot use the e notation to write that number.
format long g
10^-2.3
ans =
0.00501187233627272
Note that I do not need to use parens around the exponent, but sometimes it can be safer, in case you are not sure. So I could have written
10^(-2.3)
ans =
0.00501187233627272
In either case, you need to see that raising 10 to a fractional power is not the same thing as just shifting a decimal place, AND you cannot put a decimal point in the exponent. So this next is invalid syntax in MATLAB:
1e-2.3
Invalid expression. Check for missing multiplication operator, missing or unbalanced delimiters, or other syntax error. To construct matrices, use brackets instead of parentheses.

Error in connector.internal.fevalMatlab

Error in connector.internal.fevalJSON
You need to use one of the two forms I showed first.

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