[Request] Control of algebraic expressions CAS

[compsystems]

1: In the first version of the CAS of hpprime, I suggested control the exit (simplify none, minimum, maximum), my request was accepted, to port some good programs that I have, I need also the output controlled from a program

simplifyFlag (arg);

arg = 0 -> none
arg = 1 -> minimum
arg = 2 -> maximum

2: also I need entries are not rewritten or simplified

for example, the followings line of code, the logic says must be true and not false

getOperator:=0;

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part(x^(1/2),getOperator)=="^"; -> true ok
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part(√(x),getOperator)=="√"; -> false ?
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part(1/x),getOperator)=="/"; -> false ?
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part(inv(x),getOperator)=="inv"; -> true ok
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part(cot(x)),getOperator)=="cot"; -> false ?
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part(sec(x)),getOperator)=="sec"; -> false ? sec(x)=1/cos(x)
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part(asec(x)),getOperator)=="asec"; -> false ?
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part(acos((1/x)),getOperator)=="acos"; -> true ok
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part((x^3/x^2),0))=="/"; -> false ?
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