You could use this as a work-round: (1) -> interpret(eval(integrate(x*exp(-(x-u)^2/2)/(sqrt(2*%pi)), x=a..%plusInfinity), [a=1,u=0.5])::InputForm)
On 30 July 2015 at 22:23, Leon Baum <[email protected]> wrote: > Why can't doesn't the following produce a numerical result? > > (71) -> eval(integrate(x*exp(-(x-u)^2/2)/(sqrt(2*%pi)), x=a..%plusInfinity), > [a=1,u=0.5]) > > (71) - 0.25 erf(0.3535533905_932737622) + 0.6020653267_6429947778 > Type: > Expression(Float) > (72) -> eval(integrate(x*exp(-(x-u)^2/2)/(sqrt(2*%pi)), x=a..%plusInfinity), > [a=1,u=0.5])::Float > > Cannot convert the value from type Expression(Float) to Float . > > > If I type the expression in manually, it works: > > > > (72) -> -0.25*erf(0.3535533905_932737622) + 0.6020653267_6429947778 > > (72) 0.5063340961_2729292596 > Type: > Float > > > -- > You received this message because you are subscribed to the Google Groups > "FriCAS - computer algebra system" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/fricas-devel. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "FriCAS - computer algebra system" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/fricas-devel. For more options, visit https://groups.google.com/d/optout.
