Define a variable for simplify
06-20-2018, 11:11 AM
Post: #1
 blevita Junior Member Posts: 29 Joined: Jun 2018
Define a variable for simplify
Hi

If i enter some expression to the simplify() function, then it sometimes "assumes" some values for some variables.

Is it possible to define the value of some variables instead of replacing them directly?

As an example:

simplify(log_a^5(a^8))

It will assume a to be near to zero.
Is there a way to define a instead like that:

simplify(log_a^5(a^8) | a=2)

Or basically also for other calculations?

x+7-9 | x=3

TI-Nspire has such a functionality.
It would be great to here what is possible with the prime.
I have also attached a picture.

Thanks

Attached File(s) Thumbnail(s)

06-20-2018, 11:19 AM
Post: #2
 blevita Junior Member Posts: 29 Joined: Jun 2018
RE: Define a variable for simplify
Ok i got the solution by my self.

Just use the straight line instead of a comma and enter your value like a=2
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