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[Tips for Engineer] How to Use a Scientific Calculator? (Casio)

Standard tricks

Solving polynomials and linear systems

To solve a quadratic or cubic polynomial equation:

  1. Go to EQN mode and scroll over to the Degree? section (MODE MODE MODE 1 ?)
  2. Enter the degree (2 or 3)
  3. Enter the 3 or 4 (real) polynomial coefficients, from highest degree downward.
  4. Scroll through the solution set (which may have complex values).

To solve a system of linear equations of 2 or 3 variables:

  1. Go to EQN mode and stay at the Unknowns? section (MODE MODE MODE 1)
  2. Enter the number of variables, which is also the number of equations (2 or 3)