Scientific_functions is a project mainly written in Ruby, based on the MIT license.
This plugin contains a function that converts to number to a specified number of significant digits. This IS NOT the same as rounding.
This plugin contains a function that converts to number to a specified number of significant digits. This IS NOT the same as rounding.
"7.2234".sigfigs(3) = "7.22"
"0.00034423".sigfigs(4) = "0.0003442"Feature: Displaying Significant Figures
Scenario Outline: Returning numbers with the correct number of signficant figures
Given a number <number>
And an amount of sigfigs, <sigfigs>
Then I should get a result of <result>
Scenarios: Different numbers
| number | sigfigs | result |
| 5 | 3 | 5.00 |
| 52334 | 4 | 52330 |
| 52337 | 4 | 52340 |
| 0.003322 | 2 | 0.0033 |
| 0.003362 | 2 | 0.0034 |
| 0.003362 | 3 | 0.00336 |
| 520.334 | 4 | 520.3 |
| 520.334 | 5 | 520.33 |
| 520.334 | 3 | 520 |
| 520.334 | 2 | 520 |
| 7.003 | 3 | 7.00 |
| 7.003 | 4 | 7.003 |
| -5 | 3 | -5.00 |
| -52334 | 4 | -52330 |
| -52337 | 4 | -52340 |
| -0.003322 | 2 | -0.0033 |
| -0.003362 | 2 | -0.0034 |
| -0.003362 | 3 | -0.00336 |
| -520.334 | 4 | -520.3 |
| -520.334 | 5 | -520.33 |
| -520.334 | 3 | -520 |
| -520.334 | 2 | -520 |
| -7.003 | 3 | -7.00 |
| -7.003 | 4 | -7.003 |
| 8.003 | 6 | 8.00300 |
| 50.223 | 2 | 50 |
| 50.223 | 3 | 50.2 |
| 50.223 | 8 | 50.223000 |
| 52.01 | 4 | 52.01 |
| 52.01 | 5 | 52.010 |
| -52.01 | 4 | -52.01 |
| 0.025 | 3 | 0.0250 |
| -0.025 | 4 | -0.02500 |
| 0.26174 | 3 | 0.262 |
| -0.26174 | 3 | -0.262 |Copyright (c) 2010 Matthew Wilson, released under the MIT license