MATLAB: How can I transform the n monomial of a polynomial into n variables

matlab symbolic polynomial

how can I transform the n monomial of a polynomial into n variables? for example,y=3a+4b+5c;then I want the n monomial stored in n variables,y1=3a;y2=4b;y3=5c; Any help is the most welcome! maxpassion@163.com

Best Answer

syms a b c
y = 3*a+4*b+5*c;
out = fliplr(coeffs(y)).*symvar(y)

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MATLAB: How to make polynom with unknown coefficients

n = 10;
c = sym('c', [1 n]);
p = poly2sym(c)

MATLAB: How Can I define a Polynomial of degree n with symbolic coefficients

Whats the problem? This seems clear.

syms x a b c
P = a*x^2+b*x+c;

Are you looking for a general solution for any n? This seems to work:

n = 3;
syms x
P = sym('a',[1,n+1])*x.^(n:-1:0).'
P = 
  a1*x^3 + a2*x^2 + a3*x + a4

Best Answer

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MATLAB: How to make polynom with unknown coefficients

MATLAB: How Can I define a Polynomial of degree n with symbolic coefficients

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