Gradient method on matlab for estimating a,b?
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I have x\dot=-ax+b*cost
and i want to estimate a,b with gradient method how can i do that please help me!!
3 个评论
Star Strider
2015-11-30
Does the ‘\’ on the left hand side of your equation indicate a matrix left division (mldivide) or is it a typographical error?
Please clarify what variables represent your data, and what you want to do.
Image Analyst
2015-11-30
Perhaps it was supposed to be an overdot https://en.wikipedia.org/wiki/Dot_%28diacritic%29 which is supposed to put a small dot above the x, which typically means a time derivative.
Star Strider
2015-11-30
I didn’t consider that it could be an overdot.
Next question:
- Is ‘x’ a function of time or of ‘cost’?
- Is ‘cost’ a constant or a function of time?
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2015-11-30
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