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-rw-r--r--Tests/Tutorial/Step5/MathFunctions/mysqrt.cxx24
1 files changed, 10 insertions, 14 deletions
diff --git a/Tests/Tutorial/Step5/MathFunctions/mysqrt.cxx b/Tests/Tutorial/Step5/MathFunctions/mysqrt.cxx
index a488af6a3d..458ed63a15 100644
--- a/Tests/Tutorial/Step5/MathFunctions/mysqrt.cxx
+++ b/Tests/Tutorial/Step5/MathFunctions/mysqrt.cxx
@@ -10,10 +10,9 @@
// a hack square root calculation using simple operations
double mysqrt(double x)
{
- if (x <= 0)
- {
+ if (x <= 0) {
return 0;
- }
+ }
double result;
@@ -22,23 +21,20 @@ double mysqrt(double x)
// use the table to help find an initial value
result = x;
- if (x >= 1 && x < 10)
- {
+ if (x >= 1 && x < 10) {
result = sqrtTable[static_cast<int>(x)];
- }
+ }
// do ten iterations
int i;
- for (i = 0; i < 10; ++i)
- {
- if (result <= 0)
- {
+ for (i = 0; i < 10; ++i) {
+ if (result <= 0) {
result = 0.1;
- }
- delta = x - (result*result);
- result = result + 0.5*delta/result;
- fprintf(stdout,"Computing sqrt of %g to be %g\n",x,result);
}
+ delta = x - (result * result);
+ result = result + 0.5 * delta / result;
+ fprintf(stdout, "Computing sqrt of %g to be %g\n", x, result);
+ }
return result;
}