Hi there, I have a table with two variables that relates to a 2d dose distribution and need to determine a formula that will solve for any point on that surface. Similar to determining the equation of a straight line with a few points (y = mx +c) to then be able to calculate any point on the line. For example, what i need to calculate: The dose at a specific angle and distance from a point is... (each parameter is in relation to a single point). It will save me a LOT of time and effort looking up values and interpolating between them in work, so any help would be appreciated! Even to point me to a resource that explains the method. Thank you in advance!