¿Cómo ingresar una restricción?

Alexis shared this question 4 months ago

Ejemplo (x-2)/(x-3), x no puede ser igual a 7.

Comments (1)


Use command If. Of course the only point in which the function is not defined will not be shown in Graphics View. But you can add it manually, using a suitable symbol for the "hole".

If you enter your function f(x) as

If(x !=7, (x - 2) / (x - 3)) 

then try to evaluate f(7), GeoGebra yields undefined, as expected.

(!= means "not equal", but you also can select the ≠ symbol in the Input bar dropdown list for symbols)

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