How to write a matrix with a variable inside it?

I'm trying to write this matrix

B = [ 0 1 2x 3x^2] but matlab suggest that it should be written like B = [0 1 2*x 3*x^2]

then when I try to transpose or to do anything with it it said unrecognized function or variable 'x'

Answer 1

[Voss]

Do you mean for x to be a symbolic variable?

syms x

B = [0 1 2*x 3*x^2]

B = 

B.'

ans = 

Or for x to be a numeric variable?

x = 2.2;

B = [0 1 2*x 3*x^2]

B = 1x4

0 1.0000 4.4000 14.5200

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B.'

ans = 4x1

0 1.0000 4.4000 14.5200

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Either way, you have to define x before you use it.

[Muhammad Syauqi]

thanks for the answer I understand now :)

[Voss]

You're welcome! Any questions, let me know.