Make multiply(_:_:) function even more elegant

jsbean · jsbean · commit dda0d7957da6 · 2016-11-08T20:49:43.000-05:00
diff --git a/Linear Regression/LinearRegression.playground/Contents.swift b/Linear Regression/LinearRegression.playground/Contents.swift
@@ -33,8 +33,8 @@ func average(_ input: [Double]) -> Double {
     return input.reduce(0, +) / Double(input.count)
 }
 
-func multiply(_ input1: [Double], _ input2: [Double]) -> [Double] {
-    return zip(input1, input2).map { $0.0 * $0.1 }
+func multiply(_ a: [Double], _ b: [Double]) -> [Double] {
+    return zip(a,b).map { $0.0 * $0.1 }
 }
 
 func linearRegression(_ xVariable: [Double], _ yVariable: [Double]) -> ((Double) -> Double) {

Original file line number	Diff line number	Diff line change
`@@ -33,8 +33,8 @@ func average(_ input: [Double]) -> Double {`
`33`	`33`	`return input.reduce(0, +) / Double(input.count)`
`34`	`34`	`}`
`35`	`35`
`36`		`-func multiply(_ input1: [Double], _ input2: [Double]) -> [Double] {`
`37`		`- return zip(input1, input2).map { $0.0 * $0.1 }`
	`36`	`+func multiply(_ a: [Double], _ b: [Double]) -> [Double] {`
	`37`	`+ return zip(a,b).map { $0.0 * $0.1 }`
`38`	`38`	`}`
`39`	`39`
`40`	`40`	`func linearRegression(_ xVariable: [Double], _ yVariable: [Double]) -> ((Double) -> Double) {`