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| // uses only elementary methods | |
| // guarantees none of speed, precision or accuracy | |
| // I didn't read the specs | |
| // does not handle any errors | |
| // might be educational; definitely not practical | |
| #include "math.h" | |
| // double has 53 bits mantissa | |
| // precision is log_10(2^53) = 15.9546 |