Non-Linear Example Exponential Decay

In order to further explore the properties of the landscape formed by the sum of squares as a function of parameters, we concentrate on a slightly more 

The two parameters defining this function are the rate constant k and the initial intensity b- 

And now we repeat what we have done earlier with the straight line fit, i.e. calculating and plotting the sum of squares, ssq, as a function of a range of parameters. 

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