Lauren M. Magee Week 3

MATLAB Skills Development

• Part I: Create a script that includes the following elements
  • Define a vector u containing the elements 1,2,3,4,5,6,7,8,9,10 using the colon operation
  • Define another vector v containing elements that are the square of the vector x
  • Plot v versus u (make sure you know what that sentence means!!) using circles on the points that are connected with dashed lines
  • Save your plot as a TIFF file
  • Save your data into an excel spreadsheet using the MATLAB command xlswrite

• Part II: Use MATLAB to solve the equation ln(x) + x = 0. The following steps will help.
  • Create a function that returns ln(x) + x; its first line should be this: function [y] = logPlusX(x)
  • Create a script that uses the MATLAB function fsolve to solve the equation. This script may be short.

• Part III: Play with the four m-files from the Thursday Jan 22 schedule box.
  • Run the nutrient/colony model
  • Run the chemostat model
  • Save the graphical output from these two runs to JPEG files.
  • Run the chemostat model a second time, but cut the dilution rate in half
  • Plot both chemostat model runs on the same graph, adding a legend that allows a reader to identity both runs, and save as JPEG.