@cosullivan Not sure what you are asking.
Did you get what you needed for Thursday's problem?
@papa I did, yes, thanks. I meant to properly thank you beyond a star.
@papa https://en.wikipedia.org/wiki/Sensitivity_and_specificity I just found. Sensitivity is the number of true positives.
Negative predictive value is at this image (formula) https://wikimedia.org/api/rest_v1/media/math/render/svg/25ee592b2b1e1e21749b391cca348d32c545ea67
@papa I did. This problem is for the longitude. I was very tired last night and mentally lazy. Now I'm just physically weakened for the weekend.
@papa Happy now. I calculated the longitude myself and see N47 41.331 W122 19.049.
"I appreciate SDF but it's a general-purpose server and the name doesn't make it obvious that it's about art." - Eugen Rochko