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103 lines
2.4 KiB
Go
103 lines
2.4 KiB
Go
// Copyright ©2013 The Gonum Authors. All rights reserved.
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// Use of this code is governed by a BSD-style
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// license that can be found in the LICENSE file
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package cmplxs
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import "fmt"
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// Set of examples for all the functions
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func ExampleAdd_simple() {
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// Adding three slices together. Note that
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// the result is stored in the first slice
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s1 := []complex128{1 + 1i, 2 + 2i, 3 + 3i, 4 + 4i}
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s2 := []complex128{5 + 7i, 6 + 7i, 7 + 7i, 8 + 8i}
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s3 := []complex128{1 + 2i, 1 + 2i, 1 + 2i, 1 + 2i}
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Add(s1, s2)
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Add(s1, s3)
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fmt.Println("s1 =", s1)
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fmt.Println("s2 =", s2)
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fmt.Println("s3 =", s3)
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// Output:
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// s1 = [(7+10i) (9+11i) (11+12i) (13+14i)]
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// s2 = [(5+7i) (6+7i) (7+7i) (8+8i)]
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// s3 = [(1+2i) (1+2i) (1+2i) (1+2i)]
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}
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func ExampleAdd_newslice() {
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// If one wants to store the result in a
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// new container, just make a new slice
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s1 := []complex128{1 + 1i, 2 + 2i, 3 + 3i, 4 + 4i}
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s2 := []complex128{5 + 7i, 6 + 7i, 7 + 7i, 8 + 8i}
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s3 := []complex128{1 + 2i, 1 + 2i, 1 + 2i, 1 + 2i}
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dst := make([]complex128, len(s1))
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AddTo(dst, s1, s2)
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Add(dst, s3)
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fmt.Println("dst =", dst)
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fmt.Println("s1 =", s1)
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fmt.Println("s2 =", s2)
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fmt.Println("s3 =", s3)
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// Output:
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// dst = [(7+10i) (9+11i) (11+12i) (13+14i)]
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// s1 = [(1+1i) (2+2i) (3+3i) (4+4i)]
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// s2 = [(5+7i) (6+7i) (7+7i) (8+8i)]
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// s3 = [(1+2i) (1+2i) (1+2i) (1+2i)]
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}
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func ExampleAdd_unequallengths() {
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// If the lengths of the slices are unknown,
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// use EqualLengths to check
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s1 := []complex128{1 + 1i, 2 + 2i, 3 + 3i}
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s2 := []complex128{5 + 5i, 6 + 6i, 7 + 7i, 8 + 8i}
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eq := EqualLengths(s1, s2)
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if eq {
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Add(s1, s2)
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} else {
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fmt.Println("Unequal lengths")
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}
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// Output:
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// Unequal lengths
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}
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func ExampleAddConst() {
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s := []complex128{1 - 1i, -2 - 1i, 3 - 1i, -4 - 1i}
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c := 5 + 1i
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AddConst(c, s)
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fmt.Println("s =", s)
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// Output:
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// s = [(6+0i) (3+0i) (8+0i) (1+0i)]
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}
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func ExampleCumProd() {
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s := []complex128{1 + 1i, -2 - 2i, 3 + 3i, -4 - 4i}
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dst := make([]complex128, len(s))
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CumProd(dst, s)
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fmt.Println("dst =", dst)
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fmt.Println("s =", s)
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// Output:
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// dst = [(1+1i) (0-4i) (12-12i) (-96+0i)]
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// s = [(1+1i) (-2-2i) (3+3i) (-4-4i)]
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}
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func ExampleCumSum() {
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s := []complex128{1 + 1i, -2 - 2i, 3 + 3i, -4 - 4i}
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dst := make([]complex128, len(s))
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CumSum(dst, s)
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fmt.Println("dst =", dst)
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fmt.Println("s =", s)
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// Output:
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// dst = [(1+1i) (-1-1i) (2+2i) (-2-2i)]
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// s = [(1+1i) (-2-2i) (3+3i) (-4-4i)]
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}
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