Created
January 25, 2010 09:21
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| #log a to the base b | |
| def log_base(a, b) | |
| return (Math.log(a)/Math.log(b)) | |
| end | |
| log_base(10,10) # 1.0 | |
| log_base(100,10) # 2.0 | |
| log_base(20,10) # 1.30102999566398 |
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