recognize function from string
显示 更早的评论
Is there a way in Matlab to recognize the variables and parametest of function from sting. For example I have a string: "a1*x+a2*x^2+y", and necessary to get a function where a1,a2 - constants and x, y - variables.
采纳的回答
Star Strider
2017-3-25
Not that I am aware of.
The closest you can get to what you want to do (in this example of a polynomial) is the Symbolic Math Toolbox coeffs function, and even then you have tell it what the variables are:
syms a1 a2 x y
z = a1*x+a2*x^2+y;
[coefficients,variables] = coeffs(z, [x y])
coefficients =
[ a2, a1, 1]
variables =
[ x^2, x, y]
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Characters and Strings 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 
