Created
April 22, 2013 14:05
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Just a demonstration of IEEE floating point issue
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| var d = 0.0; | |
| for (var i = 0; i < 100; i++) | |
| { | |
| d += 0.1; | |
| d += 0.01; | |
| d += 0.001; | |
| d += 0.0001; | |
| d += 0.00001; | |
| d += 0.000001; | |
| d += 0.0000001; | |
| d += 0.00000001; | |
| } | |
| for (var i = 0; i < 100; i++) | |
| { | |
| d -= 0.00000001; | |
| d -= 0.0000001; | |
| d -= 0.000001; | |
| d -= 0.00001; | |
| d -= 0.0001; | |
| d -= 0.001; | |
| d -= 0.01; | |
| d -= 0.1; | |
| } | |
| // expect 0, get -4.57966997657877E-16 | |
| Console.WriteLine(d); |
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