From 09fac0785e7e24ae0f85b85f3765df3e9b3238a5 Mon Sep 17 00:00:00 2001
From: Phani Pavan K <kphanipavan@gmail.com>
Date: Sat, 17 Aug 2024 13:00:21 +0530
Subject: [PATCH] add vec ops to numbrs

---
 rust/numbrs/Cargo.toml    |  6 ++++++
 rust/numbrs/src/main.rs   |  9 +++++++++
 rust/numbrs/src/vecOps.rs | 24 ++++++++++++++++++++++++
 3 files changed, 39 insertions(+)
 create mode 100644 rust/numbrs/Cargo.toml
 create mode 100644 rust/numbrs/src/main.rs
 create mode 100644 rust/numbrs/src/vecOps.rs

diff --git a/rust/numbrs/Cargo.toml b/rust/numbrs/Cargo.toml
new file mode 100644
index 0000000..a1df943
--- /dev/null
+++ b/rust/numbrs/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "numbrs"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
diff --git a/rust/numbrs/src/main.rs b/rust/numbrs/src/main.rs
new file mode 100644
index 0000000..71bf5d2
--- /dev/null
+++ b/rust/numbrs/src/main.rs
@@ -0,0 +1,9 @@
+mod vecOps;
+
+fn main() {
+    println!("Hello, world!");
+}
+
+fn test() {
+    let ad = [1, 2, 3];
+}
diff --git a/rust/numbrs/src/vecOps.rs b/rust/numbrs/src/vecOps.rs
new file mode 100644
index 0000000..506231c
--- /dev/null
+++ b/rust/numbrs/src/vecOps.rs
@@ -0,0 +1,24 @@
+pub fn addVecs<'a>(v1: &'a [f32], v2: &'a [f32]) -> Vec<f32> {
+    v1.iter().zip(v2).map(|(a, b)| a + b).collect()
+}
+
+pub fn subVecs(v1: &[f32], v2: &[f32]) -> Vec<f32> {
+    v1.iter().zip(v2).map(|(a, b)| a - b).collect()
+}
+
+pub fn normalizeVec(v1: &[f32]) -> Vec<f32> {
+    let l2Norm = normVec(v1);
+    mulScalVec(&l2Norm.powi(-1), v1)
+}
+
+pub fn normVec(v1: &[f32]) -> f32 {
+    dotVecVec(v1, v1).powf(0.5)
+}
+
+pub fn dotVecVec(v1: &[f32], v2: &[f32]) -> f32 {
+    v1.iter().zip(v2).map(|(a, b)| a * b).sum()
+}
+
+pub fn mulScalVec<'a>(s: &'a f32, v1: &'a [f32]) -> Vec<f32> {
+    v1.iter().map(|a| a * s).collect()
+}