inclass4-matrices-as-operators

Info icon This preview shows pages 1–2. Sign up to view the full content.

3/15/2016 [1/2] Matrices and the Stock Market - In-class work: Matrices as Operators - RELATE 1/1 Matrices and the Stock Market Suppose I own two stocks, say General Motors and Kraft. I write down how many shares I own of each in a vector, . I.e. I have 10 shares of GM and 15 of Kraft. In the middle of last year, GM stock cost 10.3 dollars per share, and Kraft cost 7.5. At the end of last year, GM stock cost 8.2 dollars per share, and Kraft cost 7.9. Create a matrix ( numpy array, really) in the variable stock_matrix so that, when you apply matrix multiplication , I obtain a vector with the value of my portfolio at the middle of last year (first entry) and today.
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern