Storing and recalling CAS quoted expressions

10212018, 01:29 PM
Post: #1




Storing and recalling CAS quoted expressions
In the CAS, if I do
Code: a:='2+2' does a now store 4 or '2+2'? Is there a way of telling? If the latter, is there a way of recalling the original '2+2' rather than 4? 

10212018, 01:33 PM
Post: #2




RE: Storing and recalling CAS quoted expressions  
10212018, 01:49 PM
Post: #3




RE: Storing and recalling CAS quoted expressions
I believe any simple evaluations such as basic math will be evaluated by the store operator. Anything more complex will not.
TW Although I work for HP, the views and opinions I post here are my own. 

10212018, 06:02 PM
Post: #4




RE: Storing and recalling CAS quoted expressions
You can control evaluation with the second optional argument of eval.
For example a:='2+2' followed by eval(a,1) will return 2+2, assuming that autosimplification level is 0. 

10232018, 10:40 PM
Post: #5




RE: Storing and recalling CAS quoted expressions
Thanks Bernard.


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