solve() problems

[Liamtoh Resu]

Quote from HansB

Quote:PS: I do find it a pity and somewhat a design flaw, that one cannot simply do in CAS for instance x^2-sqrt5+1—>F3 (but as textbook entry). Perhaps the Function app should have a modus for lower case x. Using your custom function CAS2FUN does not quite solve the problems, since an expression gets evaluated, like sqrt5 will be transformed into its numerical approximation.

From the CAS environment, I did this:

csolve(x^2-sqrt5+1=0)

and the Prime returned two complex answers.

edit: Sorry, I did "csolve(x^2+sqrt5+1=0)" instead of "csolve(x^2-sqrt5+1=0)"
The Prime produced plus or minus (sqrt(sqrt(5)-1)).

Later.