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Wronskian Calculator

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Wronskian calculator allows you to decide the wronskian of the given set of features. The calculator also takes the determinant then calculates the by-product of all features.

what is the Wronskian?

In mathematics, the Wronskian is a determinant brought by means of Józef in the year 1812 and named through Thomas Muir. it's miles used for the look at of differential equations wronskian, in which it shows linear independence in a fixed of solutions.

In other words, the Wronskian of the differentiable functions g and f is W (f, g) = fg’ – f’g. For complex or real valued functions f_1, f_2, f_3, . . . , f_n, which are n – 1 times differentiable on the interval L, so the wronskian formula W(f_1, f_2, f_3, . . . , f_{n-1},  f_n) as a function on L is defined by

W (f_1, f_2, …, f_n) (x) =

\( \begin{vmatrix} f_1(x) & f_2(x)& ... & f_n(x) \\ f’_1(x) & f’_2(x) & ... & f’_n(x) \\ . & . & . & . \\ f_1^{n-1} (x) & f_2^{n-1} (x) & ... & f_n^{(n-1)} (x) \end{vmatrix}\)

The way to Calculate Wronskian?

You can this calculator for taking the determinant and spinoff of the given set for locating the wronskian. in case you need to do all calculations for Wronskian manually then see the example underneath:

Example:

To find the Wronskian of: \( (x^3 + 2x), \, e^{2x}, \, \cos(x) \)

Solution:

The given set of functions is: \({f_1 = x^3 + 2x, \, f_2 = e^{2x}, \, f_3 = \cos(x)}\)

Then, the Wronskian formula is given by the following determinant:

$$ W(f_1, f_2, f_3)(x) = \begin{vmatrix} f_1(x) & f_2(x) & f_3(x) \\ f_1'(x) & f_2'(x) & f_3'(x) \\ f_1''(x) & f_2''(x) & f_3''(x) \end{vmatrix} $$

In our case:

$$ W(f_1, f_2, f_3)(x) = \begin{vmatrix} x^3 + 2x & e^{2x} & \cos(x) \\ 3x^2 + 2 & 2e^{2x} & -\sin(x) \\ 6x & 4e^{2x} & -\cos(x) \end{vmatrix} $$

Now, find the determinant:

$$ W(f_1, f_2, f_3)(x) = \begin{vmatrix} x^3 + 2x & e^{2x} & \cos(x) \\ 3x^2 + 2 & 2e^{2x} & -\sin(x) \\ 6x & 4e^{2x} & -\cos(x) \end{vmatrix} $$

After expanding the determinant, the result is:

$$ W(f_1, f_2, f_3)(x) = 4x^3 e^{2x} \cos^2(x) - 2x^3 e^{2x} \sin(x) + 12x^2 \cos(x) - 12x e^{2x} \sin^2(x) + 2e^{2x} \cos(x) $$

The Wronskian and Linear Independence:

If the feature f_i is linearly based, then the columns of Wronskian can also be established because differentiation is a linear operation, so Wronskian disappears.

As a consequence, it may be used to illustrate that a hard and fast of differentiable features is independent of the c language that does not vanish identically.

How This Calculator Works?

The wronskian solver can discover the wronskian by the determinant of given features by following these instructions:

Input:

  • Input functions with recognize to any variable from the drop-down listing.
  • click at the calculate button for wronskian calculations.

Output:

  • The calculator shows all wronskian functions.
  • It gives the Wronskian via the derivation of given capabilities with stepwise calculations.