Having successfully solved this equation, use the same technique to solve the following equations. When you have finished, your plot should look like the one below:īy examining the graph, you can see that the solution will lie between –1 and – 0.5, so pick –0.75 as the guess and use the root function to get the exact value. You should adjust the axes limits of the plot to zoom in on the region where the line crosses the axis. Add grid lines to the graph to help estimate the point where the curve crosses the y=0 line. Start MathCAD and create a new, blank worksheet The first equation we will try and find a solution for is ex = x2 In order to use the root function, this must be in the form of f(x)=0 so re-write the equation in this form, and plot it. At least you should read through the entire sheet to get an overview of the topic.Įxercise 1 – Using the root() function In this exercise we will use the root() function to solve some simple equations. Work through as many of them as you are able. This worksheet takes the form of a number of examples which illustrate and introduce these principles. By the end of the sheet you will know how to: Use the root() function to solve equations of one variable Use the polyroots() function to find multiple roots of a polynomial Use a solve block to solve more complex systems of equations Use the symbolic processor to manipulate and solve equations PH36010 MathCAD worksheet 3 Roots, solve blocks and symbolic mathematics The aim of this worksheet is to introduce you to different solution techniques in MathCAD.
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