View Compilation Error

0_0_9293421_27344.cpp: In function `int main()':
0_0_9293421_27344.cpp:13: error: `log10' undeclared (first use this function)
0_0_9293421_27344.cpp:13: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_9293421_27344.cpp:14: error: `pow' undeclared (first use this function)