lupin3rd

Results 2 issues of lupin3rd

i fixed point like pointpixel from you ![image](https://user-images.githubusercontent.com/10386575/54053762-e7613080-421a-11e9-9bfe-0da7d14c52ec.png) and got this error when code call function inter ValueError: The number of derivatives at boundaries does not match: expected 1, got...