Syntax help: Linearly spaced vector and simple algebra

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zizo
zizo el 13 de Jun. de 2011
How i write this in MATLAB
t=1790 to 2000
p(t)=197,273,000/(1+e-0.0313(t-1913.25)

Respuesta aceptada

Laura Proctor
Laura Proctor el 13 de Jun. de 2011
t = 1790:2000;
p = 197273000./(1+exp(1)-.0313*(t-1913.25));
  1 comentario
Walter Roberson
Walter Roberson el 13 de Jun. de 2011
That does not do what zizo asked: it will not create p(1790) to p(2000)

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Más respuestas (1)

Walter Roberson
Walter Roberson el 13 de Jun. de 2011
Hints:
  1. e is coded as exp(1) if you are talking about the base of the natural logarithms.
  2. you need a multiplication symbol before your final '('
  3. you need to have the same number of ')' as you have '('
  4. commas are not permitted as thousand groupings in numbers
  5. http://www.mathworks.com/help/techdoc/ref/for.html
  6. are you really using e as a single constant, or does your original formula have e raised to some power? If it does have e raised to a power, see http://www.mathworks.com/help/techdoc/ref/exp.html

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