JPhrases/Approximation
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10E. Approximation
d0=: ^.@] ^@(] +/ .* %.) 1:,.[ Exponential fit of x and y d1=: ] (] +/ .* %.) 1: ,. [ Linear least squares fit of x and y d2=: [: ^ 1&,.@[ %.~ ^.@] a and b such that y is approx. a * b^x^ d3=: 1&,.@[ %.~ ] a and b such that y is approx. a + b*x