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Question: Why does 'UseAssumptions' not account for 'real' property on parameters?

Question:Why does 'UseAssumptions' not account for 'real' property on parameters?

afeddersen 449 Maple
May 28 2010
0

I tried the following:

restart;
with(Statistics):
Y9 := RandomVariable(LogNormal(a, b)):
assume(a::real, 0 < b):
c9:=solve({mu = Mean(Y9), sigma^2 = Variance(Y9)},{a,b}, UseAssumptions);

 

And received the following warning:

Warning, solve may not respect assumed property 'real' on 'a'.

 

How do I force Maple to account for property 'real' on 'a'?
 
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