@fav/arith.multiply
v0.1.1
Published
Calculates an accurate product of two numbers.
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@fav/arith.multiply
Calculates an accurate product of two numbers.
"fav" is an abbreviation of "favorite" and also the acronym of "for all versions". This package is intended to support all Node.js versions and many browsers as possible. At least, this package supports Node.js >= v0.10 and major Web browsers: Chrome, Firefox, IE11, Edge, Vivaldi and Safari.
Install
To install from npm:
$ npm install --save @fav/arith.number @fav/arith.multiply
NOTE: npm < 2.7.0 does not support scoped package, but old version Node.js supports it. So when you use such older npm, you should download this package from github.com, and move it in node_modules/@fav/arith.multiply/
directory manually.
Usage
For Node.js:
var ArithNumber = require('@fav/arith.number');
var multiply = require('@fav/arith.multiply');
var num1 = ArithNumber.of(1.23) // => { numerator: 123, denominator: 1, exponent: -2 }
var num2 = ArithNumber.of('4.567') // => { numerator: 4567, denominator: 1, exponent: -3 }
1.23 * 4.567 // => 5.6174100000000005
var num3 = multiply(num1, num2) // => { numerator: 561741, denominator: 1, exponent: -6 }
num3.toApproximateString() // => '5.61741'
For Web browsers:
<script src="fav.arith.number.min.js"></script>
<script>
var ArithNumber = fav.arith.number;
var multiply = fav.arith.multiply;
var num1 = ArithNumber.of(1.23) // => { numerator: 123, denominator: 1, exponent: -2 }
var num2 = ArithNumber.of('4.567') // => { numerator: 4567, denominator: 1, exponent: -3 }
1.23 * 4.567 // => 5.6174100000000005
var num3 = multiply(num1, num2) // => { numerator: 561741, denominator: 1, exponent: -6 }
num3.toApproximateString() // => '5.61741'
</script>
API
multiply(arithNum1, arithNum2) : ArithNumber
Adds arithNum1 and arithNum2 and creates a new ArithNumber object which has the product of these two numbers.
Parameters:
| Parameter | Type | Description | |:-------------|:-----------:|:----------------------------------------| | arithNum1 | ArithNumber | An ArithNumber object to be multiplied. | | arithNum2 | ArithNumber | An ArithNumber object to be multiplied. |
Returns:
The product of two values of ArithNumber objects.
Type: ArithNumber
Checked
Node.js (4〜)
| Platform | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |:---------:|:------:|:------:|:------:|:------:|:------:|:------:|:------:| | macOS |◯|◯|◯|◯|◯|◯|◯| | Windows10 |◯|◯|◯|◯|◯|◯|◯| | Linux |◯|◯|◯|◯|◯|◯|◯|
io.js (1〜3)
| Platform | 1 | 2 | 3 | |:---------:|:------:|:------:|:------:| | macOS |◯|◯|◯| | Windows10 |◯|◯|◯| | Linux |◯|◯|◯|
Node.js (〜0.12)
| Platform | 0.8 | 0.9 | 0.10 | 0.11 | 0.12 | |:---------:|:------:|:------:|:------:|:------:|:------:| | macOS |◯|◯|◯|◯|◯| | Windows10 |◯|◯|◯|◯|◯| | Linux |◯|◯|◯|◯|◯|
Web browsers
| Platform | Chrome | Firefox | Vivaldi | Safari | Edge | IE11 | |:---------:|:------:|:-------:|:-------:|:------:|:------:|:------:| | macOS |◯|◯ |◯ |◯| -- | -- | | Windows10 |◯|◯ |◯ | -- |◯|◯| | Linux |◯|◯ |◯ | -- | -- | -- |
License
Copyright (C) 2018 Takayuki Sato
This program is free software under MIT License. See the file LICENSE in this distribution for more details.