Define a variable for simplify

06202018, 11:11 AM
Post: #1




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+79  x=3 TINspire has such a functionality. It would be great to here what is possible with the prime. I have also attached a picture. Thanks 

06202018, 11:19 AM
Post: #2




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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