Hi Professor,

In section 2.1.2 of the online textbook ("Constant Coefficients") you have written in the example:

"Consider initial value condition *u|*_{t} = 0 = *f(x)*. It allows us define *Ï•: Ï•(x) = f(x)"*

I'm wondering: do you mean that f(x) = 0? Or should the statement read:

Consider initial value condition *u|*_{t=0} = *f(x)*

implying that f(x) is the value of u where t = 0?

Thank you for the help!