Numerical Integration (Definite Integrals)

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-integration","data":{ /* see input fields above */ }}'

Parameters accepted by this tool:

[
    {
        "type": "text",
        "name": "expression",
        "label": "Function f(x)",
        "required": true,
        "placeholder": "x^2 + sin(x)",
        "hint": "Use x as variable. Supports standard math functions."
    },
    {
        "type": "number",
        "name": "lower",
        "label": "Lower Bound (a)",
        "default": 0
    },
    {
        "type": "number",
        "name": "upper",
        "label": "Upper Bound (b)",
        "default": 1
    },
    {
        "type": "number",
        "name": "intervals",
        "label": "Intervals (n)",
        "min": 2,
        "max": 10000,
        "default": 1000,
        "hint": "More intervals = higher accuracy"
    }
]