daily 11/07/2017

• Kami

  • Getting Started is a fast-paced introduction. Read the chapter for details. For more probability

    simulations, try the Probability Simulations App for the TI-84 Plus. You can download this App

    from education.ti.com.

• How to Solve a System of Equations on the TI-84 Plus

  • How to Solve a System of Equations on the TI-84 Plus
  • Matrices are the perfect tool for solving systems of equations (the larger the better).
  • What do the A and B represent? The letters A and B are capitalized because they refer to matrices.
  • A is the coefficient matrix and B is the constant matrix
    • Coefficient MatrixConstant MatrixVariable Matrix
  • variable matrix
  • convert back and forth from a system of equations to matrix form.
  • A * X = B
  • Enter the coefficient matrix, A.
  • Augmenting matrices method to solve a system of equations
  • If the determinant of matrix A is zero, you get the ERROR: SINGULAR MATRIX error message. This means that the system of equations has either no solution or infinite solutions.

• https://blog.kissmetrics.com/tracking-online-ad-roi/

Posted from Diigo. The rest of my favorite links are here.