A-M baby

Task/Identity-matrix/Go/identity-matrix-1.go

@@ -0,0 +1,18 @@
+package main
+
+import "fmt"
+
+func main() {
+    fmt.Println(I(3))
+}
+
+func I(n int) [][]float64 {
+    m := make([][]float64, n)
+    a := make([]float64, n*n)
+    for i := 0; i < n; i++ {
+        a[i] = 1
+        m[i] = a[:n]
+        a = a[n:]
+    }
+    return m
+}

Task/Identity-matrix/Go/identity-matrix-2.go

@@ -0,0 +1,18 @@
+package main
+
+import "fmt"
+
+type matrix []float64
+
+func main() {
+    fmt.Println(I(3))
+}
+
+func I(n int) matrix {
+    m := make(matrix, n*n)
+    n++
+    for i := 0; i < len(m); i += n {
+        m[i] = 1
+    }
+    return m
+}

Task/Identity-matrix/Go/identity-matrix-3.go

@@ -0,0 +1,11 @@
+package main
+
+import (
+    "fmt"
+
+    mat "github.com/skelterjohn/go.matrix"
+)
+
+func main() {
+    fmt.Println(mat.Eye(3))
+}