I am bad at math

steveklabnik · steveklabnik · commit 16cca6dbada9 · 2014-10-02T15:07:44.000-04:00
diff --git a/src/doc/guide-lifetimes.md b/src/doc/guide-lifetimes.md
@@ -307,7 +307,7 @@ copying.
 # }
 fn compute_area(shape: &Shape) -> f64 {
     match *shape {
-        Circle(_, radius) => 2.0 * std::f64::consts::PI * radius * radius,
+        Circle(_, radius) => std::f64::consts::PI * radius * radius,
         Rectangle(_, ref size) => size.w * size.h
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -307,7 +307,7 @@ copying.`
`307`	`307`	`# }`
`308`	`308`	`fn compute_area(shape: &Shape) -> f64 {`
`309`	`309`	`match *shape {`
`310`		`- Circle(_, radius) => 2.0 * std::f64::consts::PI * radius * radius,`
	`310`	`+ Circle(_, radius) => std::f64::consts::PI * radius * radius,`
`311`	`311`	`Rectangle(_, ref size) => size.w * size.h`
`312`	`312`	`}`
`313`	`313`	`}`