17.1 CS 172 - Lab Stack Math In this lab, we will experiment with the Stack data structure and see how some problems lend themselves well to this data structure. The Stack As mentioned in class, Python 3 provides the LifoQueue class as part of the Queue library. To see how this is really just a wrapper around the basic list class below is our own Stack class that uses a list. This code has been provided to you below in a module called stackclass. py You MAY NOT change the structure of the provided Stack class in ANY way. Your post-fix logic should go in your main script. If you find yourself wanting to add more methods to the class, it means you are writing redundant code and should stop. The Stack class has the following public interface: __init__()

In a heat transfer course, we can derive the equation for the temperature distribution in a flat rectangular plate. in this example, we will look at a plate at steadystate with three sides being held at t1, and one side held at t2. the temperature for any location on the plate, t(x,y), can be calculated by where create a function (prob3_5) that will take inputs of vectors x and y in feet, scalar n, scalars l and w in feet and scalars t1 and t2 in degrees fahrenheit. it will output a matrix t which is the temperature of each x and y locations. t will have the number of columns equal to the number of elements in x and rows equal to the number of elements in y. though this can be done without loops (perhaps more efficiently), your program must use a nested loop.