What is the difference between function and objective function in MATLAB ?
显示 更早的评论
To know how to applicate the objective function for in a better way,
I want to find the difference between function and objective function, and what is the problems need to use the objective function ?
1 个评论
Stephen23
2018-5-4
"What is the difference between function and objective function in MATLAB"
Nothing. An objective function is just a function being used in a particular way.
采纳的回答
No difference - "objective function" is just the terminus technicus for the function you want to maximize or mimimize in optimization problems.
Best wishes
Torsten.
3 个评论
Johan Johan
2018-5-4
Stephen23
2018-5-4
"But in objective function the function should accept a vector, whose length is the number of independent variables, and return a scalar,and other conditions if specify the type optimization problem"
Functions can have many different kinds of inputs and outputs. Those are the requirements for a function if you want to use it as the objective function for some optimization routine.
John D'Errico
2018-5-4
编辑：John D'Errico
2018-5-4
An objective function ia still JUST A FUNCTION. That it is called an objective function is just a name. It is the function that an optimizer like fminunc will try to minimize, thus it provides the objective for the optimizer.
Shakespeare said it this way:
What's in a name? That which we call a rose By any other word would smell as sweet
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Get Started with Optimization Toolbox 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
