As jerrykmhan wrote:

> When I used the function pow() and log10() at the same time then the
> GCC displayed the up error message.

Please add the math library (-lm) to the list of your libraries.

-- 
cheers, J"org               .-.-.   --... ...--   -.. .  DL8DTL

http://www.sax.de/~joerg/                        NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)

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