Can someone tell me what is wrong with my code, and any corrections to be made?

조회 수: 1 (최근 30일)
The problem lies within newton_basic, i receive an error that dimensions do not match, however, i do not know how to fix the issue.
  댓글 수: 4
Tarsem Singh Khalsa
Tarsem Singh Khalsa 2018년 4월 4일
What is the function of j in for loop of newton_simple
Raiven Balderas
Raiven Balderas 2018년 4월 4일
im not sure.... i just need help fixing the "matrix dimensions must agree"
I dont know how to go about fixing it

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Guillaume
Guillaume 2018년 4월 4일
"I dont know how to go about fixing it"
The best way is to learn how to use the debugger. In this instance, issuing dbstop if error and looking at the states of the variables and experimenting at the command line when the program breaks into the debugger because of the error would show you the problem.
The problem is simple, your newton_simple.m code expects two functions f and df that returns a scalar value given a scalar input. Your df function does not return a scalar value when given a scalar input because that's polyder does not return scalar values. I suspect you never meant to use polyder but who knows?

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