Hello. I can't figure out how to do a nonlinear regression with two variables. Like this sample: data={{2,3,4},{3,4,5},{4,5,6}} I want mathematica to find the best value of a and b: 4 = 3^a + 2^b , 5 = 4^a + 3^b , 6 = 5^a + 4^b Thanks.
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