That picture helps.
Clarification: Now after step 3;
Tangent in which plane? (I worked it out)
turns out I didn’t know what, ” contour line” or precisely what “tangent” meant. (I guess I am rusty on my math)
Given that X and Y are values of unknown magnitudes; is this possible? (I suspect if I think about it for a day it will come to me)
That picture helps. Clarification: Now after step 3; Tangent in which plane? (I worked it out) turns out I didn’t know what, ” contour line” or precisely what “tangent” meant. (I guess I am rusty on my math)
Given that X and Y are values of unknown magnitudes; is this possible? (I suspect if I think about it for a day it will come to me)