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These are replies submitted by spacecraft

hi, sorry for my english but i didn't explain well..

the diagram x-y i have is done by many couples of experimental data (both x and y). i would to fit this points with the best fit curve and the best one is y = a*x^b + c. now, i want to evaluate the uncertainty of each coefficient (a, b and c) using the covariance matrix in order to evaluate the uncertainty of the measurement of y (i now the uncertainty of x).

this is the reason i want to calculate with maple the covariance matrix..

i hope this explanation is clear


thanks a lot

thanks for your reply

i need to assume also x is stochastic... so i have to use the complete expression y = a*x^b + c

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