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*第36602篇: C中如何实现ln(x)?
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C中如何实现ln(x)?各位大侠,C中如何实现ln(x)?请不吝赐教!谢谢!
#include <math.h> float log (float val)；如题
log(x)是以10为底的啊首先谢谢你! log(x)是以10为底的啊,我原先也这么想的,可是ln(x)是以e为底的.
晕。你看过帮助没？log()是以e为底，
log10()是以10为底。
| Description: The log function calculates the natural logarithm for the floating-point number val. The natural logarithm uses the base e or 2.718282…[/QUOTE] [QUOTE]Description: The log10 function calculates the common logarithm for the floating-point number val. The common logarithm uses base 10. |