PH24010. MathCAD More Curve Fitting. Previously on PH24010. Linear Fitting slope(), intercept() line() Pre-process Y-data: y = k/x y = e kx. What when can’t pre-process ?. eg. y = a + bx + cx 2 Current through light bulb R changes with heat. linfit().
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More Curve Fitting
Find A,B,C & D to give best fit to data.
P0 is the background level (y0)
P1 is the amplitude of the peak maximum (A)
P2 is the x value of the peak centre (m)
P3 is the width of the peak at half amplitude (w)
P0 is the background level (y0) = 2
P1 is the amplitude of the peak maximum (A) = 6
P2 is the x value of the peak centre (m) = -3
P3 is the width of the peak at half amplitude (w) = 2
Use vector subscript to extract correct function from vector function