# Entering f(x) notation in NEW CAS app

In the new CAS app (Sep 4, 2019), the tutorial indicates that entering a function with f(x) notation should generate a graph in the graphics window...it does not. After the function is entered in f(x) notation the tutorial indicates that you should be able to perform various operations on the function using the function name (like evaluating the function with specific input values, taking limits of the function, derivatives, etc), but without being able to have the f(x) notation recognized by the app, these operations are not available. Am I missing something? I am able to enter a function with "y=" notation and then label the function as "f". This will generate a graph, and allow me to find the roots of the function, but none of the other function operations (Limits, Derivatives, etc).

Thanks

I can't check right now, but please try entering the function using :=

Like e.g. f(x):=x^2+2x+1

to see the graph and apply operations.

I can't cross check right now the Tutorial with the app. I hope that this (at least) solves your issue.

I’m wrong. I’ve just talked with the devs and the use of := to define a function is not wanted.

Some bugs have already been fixed for the next release.

What is the problem using the := operator? It works!

Now the CAS app can solve systems with more than three linear equations! Thanks!!

But now we miss the slider for a set of curves; a declaration like f(x)=t*x^2 is no more possible.

Any idea?

Please try v558 (iOS App only for now)

Loading...Comments have been locked on this page!