Tool for solving differential equations (eg first degree and second degree) according to a function name and a variable.

Differential Equation Solver - dCode

Tag(s) : Mathematics, Symbolic Computation

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Tool for solving differential equations (eg first degree and second degree) according to a function name and a variable.

The equation must follow a strict syntax to get a solution:

- Use ' to represent the derivative of order 1, ' ' for the derivative of order 2, ' ' ' for the derivative of order 3, etc.

Example: f' + f = 0

- Do not indicate the variable to derive from the equation.

Example: f(x) is marked f and the variable x must be specified in the variable input.

Example: \( f' + f = 1 \Rightarrow f(x) = c_1 e^{-x}+1 \) with \( c_1 \) a constant

- Only the function is differentiable and not a combination of function

Example: (1/f)' is invalid but 1/(f') is correct

There are multiple notations for a function f:

Example: $$ f'(x) = \frac{\mathrm{d} f(x)}{\mathrm{d}x} $$

Example: $$ f''(x) = \frac{\mathrm{d}^2 f(x)}{\mathrm{d}x^2} $$

The apostrophe indicates the order/degree of derivation, the letter in parenthesis is the derivation variable.

The exponent indicates the order/degree of derivation, the letter of the denominator is the derivation variable.

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Source : http://www.dcode.fr/differential-equation-solver

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