diff options
Diffstat (limited to 'Help/guide/tutorial/Step7/MathFunctions/mysqrt.cxx')
| -rw-r--r-- | Help/guide/tutorial/Step7/MathFunctions/mysqrt.cxx | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/Help/guide/tutorial/Step7/MathFunctions/mysqrt.cxx b/Help/guide/tutorial/Step7/MathFunctions/mysqrt.cxx index 7eecd26..abe767d 100644 --- a/Help/guide/tutorial/Step7/MathFunctions/mysqrt.cxx +++ b/Help/guide/tutorial/Step7/MathFunctions/mysqrt.cxx @@ -1,4 +1,3 @@ -#include <cmath> #include <iostream> #include "MathFunctions.h" @@ -10,12 +9,6 @@ double mysqrt(double x) return 0; } - // if we have both log and exp then use them -#if defined(HAVE_LOG) && defined(HAVE_EXP) - double result = std::exp(std::log(x) * 0.5); - std::cout << "Computing sqrt of " << x << " to be " << result - << " using log and exp" << std::endl; -#else double result = x; // do ten iterations @@ -27,6 +20,5 @@ double mysqrt(double x) result = result + 0.5 * delta / result; std::cout << "Computing sqrt of " << x << " to be " << result << std::endl; } -#endif return result; } |