math-base-geometry/libs/two-dimensional/Circle.js

utils for math geometry

const utils = require("./../utils");
const handleDecimal = utils.handleDecimal;
const PI = utils.PI;

function diameter(r, decimalLimit = false) {
    const formula = 2 * r;

    const resp = handleDecimal(formula, decimalLimit);

    return resp;
}

function circumference(r, decimalLimit = false) {
    const formula = 2 * PI * r;

    const resp = handleDecimal(formula, decimalLimit);

    return resp;
}

function area(r, decimalLimit = false) {
    const formula = PI * (r * r);

    const resp = handleDecimal(formula, decimalLimit);

    return resp;
}

module.exports = {
    diameter,
    circumference,
    area
};