I have this problem of "This value must be a function". I already checked everything twice with a friend and none of us find what is wrong. Please is someone can explain what or where is the problem.
Mathcad expects W to be a function - there is no multiplication symbol between the W and (x-x1). See earlier example as well.
Very old error....
Ah, I've had nights like that. 🙄
Либо слишком мало клеток мозга, либо слишком много пива ... хотя одно ведет к другому!!