// Sqrt returns an approximation to the square root of x.
func Sqrt(x float64) float64 {
z := 1.0
- for i := 0; i < 1000; i++ {
+ for i := 0; i < 1000; i++ {
z -= (z*z - x) / (2 * z)
}
return z
its <code>src</code> is just a file name.
</step>
-<step title="Specifiying a source line" src='doc/codewalk/codewalk.xml:/title="Title"/'>
+<step title="Specifying a source line" src='doc/codewalk/codewalk.xml:/title="Title"/'>
The most complex part of the codewalk specification is
saying what lines to highlight.
Instead of ordinary line numbers,