sqrt.json

{
    "id": "sqrt",
    "summary": "Square root",
    "description": "Computes the square root of a real number `x`, which is equal to calculating `x` to the power of *0.5*.\n\nA square root of x is a number a such that *`a² = x`*. Therefore, the square root is the inverse function of a to the power of 2, but only for *a >= 0*.\n\nThe no-data value `null` is passed through and therefore gets propagated.",
    "categories": [
        "math",
        "math > exponential & logarithmic"
    ],
    "parameters": [
        {
            "name": "x",
            "description": "A number.",
            "schema": {
                "type": [
                    "number",
                    "null"
                ]
            }
        }
    ],
    "returns": {
        "description": "The computed square root.",
        "schema": {
            "type": [
                "number",
                "null"
            ]
        }
    },
    "examples": [
        {
            "arguments": {
                "x": 0
            },
            "returns": 0
        },
        {
            "arguments": {
                "x": 1
            },
            "returns": 1
        },
        {
            "arguments": {
                "x": 9
            },
            "returns": 3
        },
        {
            "arguments": {
                "x": null
            },
            "returns": null
        }
    ],
    "links": [
        {
            "rel": "about",
            "href": "http://mathworld.wolfram.com/SquareRoot.html",
            "title": "Square root explained by Wolfram MathWorld"
        }
    ],
    "process_graph": {
        "power": {
            "process_id": "power",
            "arguments": {
                "base": {
                    "from_parameter": "x"
                },
                "p": 0.5
            },
            "result": true
        }
    }
}