![]() You will hand in the three graphs you create in parts A, B, and C, as well as the questions in Part C. The graphs and questions can be e-mailed to me if you wish. In some wilderness areas, deer and mountain lion populations are interrelated since the mountain lions rely on deer as a source of food. The population of each species goes up and down in cycles, but out of phase with each other. A wildlife management research team estimated the populations of lions and deer in a particular region every 2 years for a 16-year period. Lions Part A: Deer Population Analysis 1. To do this with Graphmatica, choose DATA PLOT EDITOR from the VIEW menu.Įnter the data for the deer population for the time interval [0, 16) in a graphing utility and produce a scatter plot of the data. This will allow you to enter discreet (x, y) points. ![]() Part B: Mountain Lion Population Analysis a 1. Enter the data for the mountain lion population for the time interval (0,16) in a graphing utility and produce a scatter plot of the data. See step 1 of Part A for Graphmatica instructions. Construct a function of the form f(x) = A(wx-4)+B by figuring out the period, amplitude and phase shift as found in chapter 7 of your textbook. Save this graph to be handed in.Graphmatica Help - Defining Your Own FunctionsĭEFINING YOUR OWN FUNCTIONS AND CONSTANTS If necessary adjust your values of A, w, and op for a better fit. Graphmatica allows you to define your own custom functions and named constants, which you can then reference in any equation. The function or constant name may be f, g, a single Greek letter (except lowercase π or θ or uppercase Σ or Γ), Use the Functions item in the Tools menu to bring up the Functions dialog box, which lists all of the custom functions you have defined and allows you to define or delete functions.Įnter your custom function or constant in one of the following formats: constant=expression You may want to do so to add functions derived from those built-in to the program to its library, or to make entering equations with several instances of a common subexpression faster and more accurate. Or a multi-letter word up to 20 characters. Valid function names start with a letter (Latin or Greek) and areįollowed by letters, numbers, subscripts, or underscore ("_"). ![]() Letters may be used interchangeably in the function name when it is defined and when you reference it in Note that Latin letters used in function and constant names are not case sensitive-upper and lowercase ( select Special Characters in the Edit menu press the αβγ… button) to help you enter characters (See the Operator Table for aĬomplete list of these.) Use the Special Characters tool window You may not use a name which is alreadyĪssigned to a built-in function or variable. However, Greek letters are case sensitive, to accommodate the customary practice ofĪssigning unrelated meanings to upper- and lowercase Greek letters in different contexts. The variable name in your function definition must be either x or t. ![]() Regardless of which variable you pick, you may use the function in any equation the value you pass to the function when you use it does not need to use the same variable. Your function definition may be any expression that uses only the variable you specify and any constants or free variables (a, b, c, j, k) you need. You may also use any built-in function, or a custom function or constant you have previously defined in your graph document or function library.įor example, some useful functions and constants you could define include: Logarithm base 2 GRAPHMATICA LOGARITHMIC GRAPHS FREE To remove a function that is no longer needed, select a function in the top listbox and use the Delete button. Note that when a function is referenced by other functions, you must delete each of those (or modify them to no longer reference the function you are trying to delete) first. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |