Numerical Differentiation

The same endpoint powers the form above. Send JSON, get JSON — no key, no signup.

curl -sX POST 'https://itsfully.online/backend/connector-api.php?action=execute' \
  -H 'Content-Type: application/json' \
  -d '{"tool":"numerical-differentiation","data":{ /* see input fields above */ }}'

Parameters accepted by this tool:

[
    {
        "type": "text",
        "name": "expression",
        "label": "Function f(x)",
        "required": true,
        "placeholder": "x^3 - 2*x + 1",
        "hint": "Use x as variable. Supports: +, -, *, /, ^, sqrt, sin, cos, tan, log, exp, abs."
    },
    {
        "type": "text",
        "name": "x_values",
        "label": "x Values",
        "default": "0, 1, 2",
        "hint": "Comma-separated list of x values to evaluate at."
    },
    {
        "type": "select",
        "name": "order",
        "label": "Derivative Order",
        "options": [
            {
                "value": "1",
                "label": "1st (f')"
            },
            {
                "value": "2",
                "label": "2nd (f'')"
            },
            {
                "value": "3",
                "label": "3rd (f''')"
            }
        ],
        "default": "1"
    }
]