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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!

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# Equation with two variables?

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