NumPy | Python Methods and Functions

Using the

method, we can get a polynomial from the Chebyshev series using **np.cheb2poly()** ` np.cheb2poly () `

.

Syntax:`np.cheb2poly (array)`

Return:Return array having coefficients of polynomial.

** Example # 1: **

In this example we see that using ` np.cheb2poly () `

we can get polynomial from the Chebyshev series using this method.

` ` |

[Polynomial ([- 5., 5., 14.], domain = [- 1., 1.], window = [- 1., 1.])]

< / blockquote>

Example # 2:

`# NumPy import`

`import`

`numpy as np`

`from`

`numpy`

`import`

`polynomial as P`

`x`

`=`

`np .array ([`

`2`

`,`

`3`

`,`

`5`

`,`

`7`

`,`

`11`

`])`

`# using the np.cheb2poly () method`

`gfg`

`=`

`P.Chebyshev (x)`

`gfg`

`=`

`gfg.convert (kind`

`=`

`P.Polynomial)`

`gfg`

`=`

`P.chebyshev.cheb2poly (gfg)`

`(gfg)`

[Polynomial ([8., -18., -78., 28., 88.], domain = [- 1., 1.], window = [- 1., 1.])]

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