![]() The notion of a pure function comes from the calculus, and is widely used in functional programming languages, Mathematica in particular. The syntax is straightforward and simple: If you want to determine the numerical value of a number, use N.This is a useful symbol to use to avoid assigning equations to The % is a special symbol which takes in the most recently inputtedĮquation.When you wish to substitute a variable with a value, use the option /.When using division, be sure to separate the numerators and denominators with parentheses to prevent errors.When inputting π, you must type in Pi or \.Square roots (radicals) are expressed with the input Sqrt.Absolute values are expressed using the Abs command.Exponents are expressed with carrots ^.In Mathematica, you can use a blank space instead of typing *, so letter/numbers that are separated by space will be treated by Mathematica as multiplication. Types of operations are expressed as + (addition), - (subtraction), *(multiplication), / (division).There are a few things to note when defining functions: You may want several input values, and you may want the user to group some of those input values in curly brackets. Instead, you may need to carry out several steps of computation, using temporary variables. ![]() However, in may cases, you may find it impossible to define the function's value in a single simple formula. The simplest user-defined functions are the "one-liners", where the quantity of interest can be computed by a single formula. Return to the main page for the course APMA0330 Return to the main page for the course APMA0340 Return to Mathematica tutorial for the first course APMA0340 Return to Mathematica tutorial for the second course APMA0330 Return to computing page for the second course APMA0340 Return to computing page for the first course APMA0330 ![]()
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