Using a Home variable in CAS
You can access Home variables from within the CAS. Home variables are assigned uppercase letters; CAS
variables are assigned lowercase letters. Thus SIN(x) and SIN(X) will yield dierent results.
To use a Home variable in the CAS, simply include its name in a calculation. For example, suppose in Home
view you have assigned variable Q to 100. Suppose too that you have assigned variable q to 1000 in the CAS.
If you are in the CAS and enter 5*q, the result is 5000. If you enter 5*Q, the result is 500.
In a similar way, CAS variables can be used in calculations in Home view. Thus you can enter 5*q in Home view
and get 5000, even though q is a CAS variable.
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