# EGR 103/Spring 2016/Lab 6

From PrattWiki

## Contents

## Basic Root-Finding Problems

- Main thing is to look at MATLAB:Fzero and the different ways of calling it.
- The sign plots are really helpful.
- The last equation has three sign changes but only two roots

## Basic Min/Max Finding Problems

- Main thing is to look at MATLAB:Fminbnd and the different ways of calling it.

## Chapra Problem 6.16

- This is a one-parameter search problem. There is an examples for a two-parameter searches at MATLAB:Fzero#One_Parameter

## Chapra 6.21

- This simply requires using
`fzero`

twice - just be careful on how you initialize`fzero`

and also be careful about units for the angles.

## Chapra 7.19

- The lab handout pretty much walks you through this one.

## Chapra 7.23, 7.24, and 7.25(b/c)

- These problems will require fminsearch to find the extremes, as well as
`meshgrid`

and`surfc`

to make the plots; more on that at Plotting Surfaces