I want to increase the stack limit. but i can not raise it above the hard limit....

so i wonder whether there is a way to increase the hard limit, or at least tell me how much is it?

I tried to use java to call maple command, but end up jvm crash. after some digging, i found the command i issued returned a rather huge string (around 40KB...).

Is this the reason why jvm crash? should i constrant the length of a command result when calling it from Java code?

can i use maple to get all the roots in a given expression?

for example: i have a expression "(2b+c)^(1/2)+c-(c-2b)^(1/3)"

and I want to get a list that contains "(2b+c)^(1/2)" and "(c-2b)^(1/3)"

is there any maple commands i can play with?

Is there any some kind of environment variable(or command,package, anything...) that I can play with to tell maple consider all the constrants implied by the given expression

For Example, I want to simplify the following equation(this equation's final form is "0=0" if you take the implied constraints into account.)

 "(4*a^3*b)^(1/2)/(-(a/(4*b))^(1/2))+(4*a^3*b*(4*b/a))^(1/2) = 0" 

in real domain and this equation implies that variable a and b are both negative or positive because of the sqrt operation. And neither a nor b should be zero because they are part of a fraction's denominator.

but if i simply tell maple to simplify this equation, all the constrants will be ignored by maple, even if i use RealDomain package.

the following cmd gives me three 3 solutions: -1, 1,sqrt(2), even if I specificlly assume that a is not equal to neither 1 or -1....

([RealDomain[solve]((1/(a-1)-1/(a+1))*(2*a^2-2)/a = 4/surd(2, 2), useassumptions = true)] assuming a <> 1, a <> -1

why does this wired thing happen?