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Lecture Comments (3)

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Post by candace castro on March 6, 2015

how is a*(xn-1)/n equivalent to a^n/n!?

1 answer

Last reply by: Professor Arash Vafanejad
Thu Feb 27, 2014 6:01 PM

Post by Nicholas Lasky on February 24, 2014

I need to create a program where variance is determined from var.  write a script that determines Sn as a function of n, n>1 for the following data: x=[45 38 47 41 35 43] Answer [24.50 22.33 16.25 24.20 19.90].  I know that when i use var(x) it will return the 19.9 value because it is giving me the variance of the entire vector.  I need to create a for loop that lets me return the variance for n values, example n = 1 would be the variance of 45 and 38, i think.  Not really sure how to do this.

Repeating With For

  • Newton’s method: an iterative procedure that refines an initial guess and can be used to find the square root of a positive number, this method only uses arithmetic operations of addition, subtraction and division.
  • The basic for construct is as follows:
    • for index j:m:k
    • statements
    • end

Repeating With For

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
  • Repetition 0:19
  • Newton’s Method 1:39
  • Factorials 4:11
  • Limit of a Sequence 6:03
  • Basic For Construct 9:23
  • Example: Leaving Out For 12:26