June 2018 Update

Task/Deconvolution-1D/Go/deconvolution-1d-3.go

@@ -0,0 +1,36 @@
+package main
+
+import (
+    "fmt"
+
+    "gonum.org/v1/gonum/mat"
+)
+
+var (
+    h = []float64{-8, -9, -3, -1, -6, 7}
+    f = []float64{-3, -6, -1, 8, -6, 3, -1, -9, -9, 3, -2, 5, 2, -2, -7, -1}
+    g = []float64{24, 75, 71, -34, 3, 22, -45, 23, 245, 25, 52, 25, -67, -96,
+        96, 31, 55, 36, 29, -43, -7}
+)
+
+func band(g, f []float64) *mat.Dense {
+    nh := len(g) - len(f) + 1
+    b := mat.NewDense(len(g), nh, nil)
+    for j := 0; j < nh; j++ {
+        for i, fi := range f {
+            b.Set(i+j, j, fi)
+        }
+    }
+    return b
+}
+
+func deconv(g, f []float64) mat.Matrix {
+    z := mat.NewDense(len(g)-len(f)+1, 1, nil)
+    z.Solve(band(g, f), mat.NewVecDense(len(g), g))
+    return z
+}
+
+func main() {
+    fmt.Printf("deconv(g, f) =\n%.1f\n\n", mat.Formatted(deconv(g, f)))
+    fmt.Printf("deconv(g, h) =\n%.1f\n", mat.Formatted(deconv(g, h)))
+}