mathjs
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Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser with support for symbolic computation, comes with a large set of built-in functions and constants, and offers an integrated solution to work with dif
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HTML
<html lang="en">
<head>
<meta charset="utf-8">
<title>math.js | basic usage</title>
<script src="../../lib/browser/math.js"></script>
</head>
<body>
<script>
function print(value) {
const precision = 14
document.write(math.format(value, precision) + '<br>')
}
// functions and constants
print(math.round(math.e, 3)) // 2.718
print(math.atan2(3, -3) / math.pi) // 0.75
print(math.log(10000, 10)) // 4
print(math.sqrt(-4)) // 2i
print(math.pow([[-1, 2], [3, 1]], 2)) // [[7, 0], [0, 7]]
print(math.derivative('x^2 + x', 'x')) // 2 * x + 1
// expressions
print(math.evaluate('12 / (2.3 + 0.7)')) // 4
print(math.evaluate('12.7 cm to inch')) // 5 inch
print(math.evaluate('9 / 3 + 2i')) // 3 + 2i
print(math.evaluate('det([-1, 2; 3, 1])')) // -7
// chained operations
const a = math.chain(3)
.add(4)
.multiply(2)
.done()
print(a) // 14
</script>
</body>
</html>