Hi

I have a problem executing Boulton's method (1963).
When inserting the data I get this error:

File "C:\Users\multiaba\Desktop\Essai Pompage - Alvaro Osorio\Python_Chyn_Alvaro Osorio\hypy\blt.py", line 38, in lap
s = sp.special.kv(0, math.sqrt(p+x[1]p/(x[0](p+x[1]))))/p
ValueError: math domain error

but if I enter the "demo" data it works correctly.

The data is similar. I don't understand why, the code doesn't work.

Can you help me? SVP