I tried this R.<x>=QQ[] f=x^4-x^2+1 A=f.coeffients() A

The answer give [1,-1,1] But I want to get [1,0,-1,0,1]

Help please

1 | initial version |

I tried this R.<x>=QQ[] f=x^4-x^2+1 A=f.coeffients() A

The answer give [1,-1,1] But I want to get [1,0,-1,0,1]

Help please

I tried ~~this
R.<x>=QQ[]
f=x^4-x^2+1
A=f.coeffients()
A~~this

```
R.<x> = QQ[]
f = x^4 - x^2 + 1
A = f.coeffients()
A
```

~~The ~~This gave the answer ~~give [1,-1,1]
~~`[1, -1, 1]`

.
But I want to get ~~ [1,0,-1,0,1]~~

Help please`[1, 0, -1, 0, 1]`

.

I tried this

```
R.<x> = QQ[]
f = x^4 - x^2 + 1
A = f.coeffients()
A
```

This gave the answer `[1, -1, 1]`

.
But I want to get `[1, 0, -1, 0, 1]`

.

I want to ~~extract all ~~obtain the list of coefficients of a ~~given polynomial ~~polynomials,
including the ~~nul coefficients of the polynomial.~~zero coefficients.

I tried this

```
R.<x> = QQ[]
f = x^4 - x^2 + 1
A =
```~~f.coeffients()
~~f.coefficients()
A

This gave the answer `[1, -1, 1]`

.
But I want to get `[1, 0, -1, 0, 1]`

.

5 | retagged |

I want to obtain the list of coefficients of a polynomials, including the zero coefficients.

I tried this

```
R.<x> = QQ[]
f = x^4 - x^2 + 1
A = f.coefficients()
A
```

This gave the answer `[1, -1, 1]`

.
But I want to get `[1, 0, -1, 0, 1]`

.

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