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68 bytes removed ,  11:52, 18 January 2015
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→‎What to expect: Typo & formatting
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{| class="wikitable" style="margin: auto; align:right"
 
{| class="wikitable" style="margin: auto; align:right"
|+align="bottom" | Approximate runtime (wall clock time in seconds) on an Intel® Core™ i5-4340M CPU
+
|+ Approximate runtime (wall clock time in seconds) on an<br/>Intel® Core™ i5-4340M CPU (2.9 GHz)
 
!Matrix dimension
 
!Matrix dimension
 
!Interval <code>plus</code>
 
!Interval <code>plus</code>
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!Interval <code>inv</code>
 
!Interval <code>inv</code>
 
|-
 
|-
|align="right"| 10
+
| 10
 
|align="right"| < 0.1
 
|align="right"| < 0.1
 
|align="right"| < 0.1
 
|align="right"| < 0.1
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|align="right"| 3.3
 
|align="right"| 3.3
 
|-
 
|-
|align="right"| 20
+
| 20
 
|align="right"| < 0.1
 
|align="right"| < 0.1
 
|align="right"| < 0.1
 
|align="right"| < 0.1
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|style="text-align:right; font-weight: bold; color:orange"| 32.3
 
|style="text-align:right; font-weight: bold; color:orange"| 32.3
 
|-
 
|-
|align="right"| 30
+
| 30
 
|align="right"| < 0.1
 
|align="right"| < 0.1
 
|align="right"| < 0.1
 
|align="right"| < 0.1
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|style="text-align:right; font-weight: bold; color:red"| 142.1
 
|style="text-align:right; font-weight: bold; color:red"| 142.1
 
|-
 
|-
|align="right"| 40
+
| 40
 
|align="right"| < 0.1
 
|align="right"| < 0.1
 
|align="right"| 0.1
 
|align="right"| 0.1
 
|align="right"| 15.6
 
|align="right"| 15.6
 +
|
 
|-
 
|-
|align="right"| 50
+
| 50
 
|align="right"| 0.1
 
|align="right"| 0.1
 
|align="right"| 0.2
 
|align="right"| 0.2
 
|style="text-align:right; font-weight: bold; color:orange"| 29.1
 
|style="text-align:right; font-weight: bold; color:orange"| 29.1
 +
|
 
|}
 
|}
    
''Why is the interval package accurate?''
 
''Why is the interval package accurate?''
The GNU Octave builtin floating-point routines are not useful for interval arithmetic: Their results depend on hardware, system libraries and compilation options.  
+
The GNU Octave built-in floating-point routines are not useful for interval arithmetic: Their results depend on hardware, system libraries and compilation options.  
 
   
The interval package handles all arithmetic functions with the help of the [http://www.mpfr.org/ GNU MPFR library]. With MPFR it is possible to compute system-independent, valid and tight enclosures of the correct results.
 
The interval package handles all arithmetic functions with the help of the [http://www.mpfr.org/ GNU MPFR library]. With MPFR it is possible to compute system-independent, valid and tight enclosures of the correct results.
  
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