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52 lines
1.2 KiB
Markdown
52 lines
1.2 KiB
Markdown
---
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layout: default
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---
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# Basic usage
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File: [basic_usage.html](basic_usage.html) (click for a live demo)
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```html
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<!DOCTYPE html>
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<html>
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<head>
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<title>math.js | basic usage</title>
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<script src="https://unpkg.com/mathjs@4.4.2/dist/math.min.js"></script>
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</head>
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<body>
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<script>
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function print(value) {
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var precision = 14;
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document.write(math.format(value, precision) + '<br>');
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}
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// functions and constants
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print(math.round(math.e, 3)); // 2.718
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print(math.atan2(3, -3) / math.pi); // 0.75
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print(math.log(10000, 10)); // 4
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print(math.sqrt(-4)); // 2i
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print(math.pow([[-1, 2], [3, 1]], 2)); // [[7, 0], [0, 7]]
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print(math.derivative('x^2 + x', 'x')); // 2 * x + 1
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// expressions
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print(math.eval('12 / (2.3 + 0.7)')); // 4
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print(math.eval('12.7 cm to inch')); // 5 inch
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print(math.eval('9 / 3 + 2i')); // 3 + 2i
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print(math.eval('det([-1, 2; 3, 1])')); // -7
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// chained operations
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var a = math.chain(3)
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.add(4)
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.multiply(2)
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.done();
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print(a); // 14
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</script>
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</body>
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</html>
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```
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<!-- Note: This file is automatically generated. Changes made in this file will be overridden. -->
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