Compare two revisions of: Substitute

... ... @@ -17,7 +17,7 @@ Main purposes are to obtain the composition of two functions or to evaluate a fu
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18 18 ```LaTeX
19 19 \function{f}{x^4 - 5x^3 + 4x^2 + 3x + 7} % defines a function named f
20 - \randint{x0}{2}{9} % point where f is to be evaluated
20 + \number{x0}{6} % point where f is to be evaluated
21 21 \substitute{fx0}{f}{x}{x0} % this is the function f at point x_0
22 22 ```
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