No solution found - MathCad 14
No solution found - MathCad 14
(OP)
Can somebody have a look at this?
This uses a solve block and an equation created with a boolean equal to solve for an unknown.
I want to solve for n and for different input values. This works for f := 1 but not f := 2 or f := 3.
I'm not very familiar with MathCad so this may not be the best approach. Any advice would be appreciated.
Regards,
Daniel
This uses a solve block and an equation created with a boolean equal to solve for an unknown.
I want to solve for n and for different input values. This works for f := 1 but not f := 2 or f := 3.
I'm not very familiar with MathCad so this may not be the best approach. Any advice would be appreciated.
Regards,
Daniel





RE: No solution found - MathCad 14
In case of your function I was successful replacing the factorials either with the appropriate Gamma functions and also by replacing them using mathcads built-in "combin()". The latter did surprise me as combin() won't work with non-integers, too.
The solution of course is a non-integer and for some reasons beyond me, the symbolic eval would only yield negative solutions (which are correct anyway) for odd values of f and refused to respect a n>0 constraint or an equivalent "assume" statement.
Nevertheless the numeric evaluation, given a positve guess value, always seems to return the prefered positive solution.
RE: No solution found - MathCad 14
Your comments are understood and explanation clear. Thanks for providing the updated MathCad file.
Regards,
Daniel