sequence2.vl

{
    "$schema": "https://vega.github.io/schema/vega-lite/v4.json",
    "data": {
        "sequence": {
            "as": "u",
            "start": 0,
            "step": 0.1,
            "stop": 12.7
        }
    },
    "encoding": {
        "x": {
            "field": "u",
            "type": "quantitative"
        },
        "y": {
            "field": "v",
            "type": "quantitative"
        }
    },
    "mark": "line",
    "transform": [
        {
            "as": "v",
            "calculate": "sin(datum.u)"
        }
    ]
}