User guide

Define can be found under the Catalog ( . The catalog is in alphabetical
order. You may also type the word d-e-f-i-n-e using the 0 tab.
Example 7. We wish to define f(x) as the function f(x) = x
2
−16. We start
by defining the function. See button sequence seen in the following image:
The output done confirms that the function has been defined. You may
confirm defined functions or variables at any time by typing the variable or
function name.
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