Here I have assumed that two data files named as DATA1.txt and DATA2.txt are saved on desktop, otherwise you need to provide correct path of the file. We first need to import data from the files and then we will plot them in a single graph. Thus our table of data for each of the files will look like follows. In our case we shall consider that we have two data files written in the form of two columns of which the first column is the “x” values and the second column is “y” values. Plotting graph from a data is little tricky and proper formatting of the data file is required. This becomes important when we need to handle a very large amount of data, which is normally output of a program or an experiment, saved in a text file. Plotting graph by importing data from a file(s) Use of this command is very easy as shown in the example.ĥ. In many cases functions take simpler form when represented in parametric form. Parameterization is one of the beauties of mathematics. Parameter “a” is named as “Multiplier” and “b” is named as “Phase”. Default value of “a” is set to 1 and default value of “b” is set to 0. Here the function is manipulated with respect to two parameters “a” and “b”. This shows the flexibility of Mathematica. The example here is little different from the standard form of command. Here x defines the plot range and u is the parameter to be manipulated. Mathematica is capable of handling such thing in a beautiful manner. Very often we need to visualize the effect of a function as a parameter is changed. In the argument of command “Piecewise” write your functions with the conditions which basically define the range of each individual segment and define the total range of the plot like the previous case. To plot such functions we need to use a different command. Often we come across functions which are not smooth but piecewise continuous. Within the first curly brackets you need to put your functions separated by commas and then in the second curly brackets define the range of plot. First I will show the general command and then explain how it works. This is very easy and similar to plotting single graphs. This is the most common situation people face while they are in need of comparing two or more graphs. In this article I am going to discuss some of the commonly occurring issues. But it takes some effort to get used to its commands for plotting graphs and often users fall into difficulty to plot in the way they want. It has several ways of plotting functions and data. Mathematica is one of the most popular software used for mathematical computations all over the world.
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