fix weird build error

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ngx-trend",
-  "version": "3.0.0",
+  "version": "3.0.1",
   "license": "MIT",
   "scripts": {
     "ng": "ng",
@@ -33,7 +33,7 @@
     "zone.js": "^0.8.18"
   },
   "devDependencies": {
-    "@angular/cli": "^1.6.0-rc.1",
+    "@angular/cli": "1.5.5",
     "@angular/compiler-cli": "^5.0.4",
     "@angular/language-service": "^5.0.4",
     "@types/jasmine": "^2.8.2",

src/app/slider/slider.component.ts

@@ -1,4 +1,10 @@
-import { Component, EventEmitter, Input, Output, ViewEncapsulation } from '@angular/core';
+import {
+  Component,
+  EventEmitter,
+  Input,
+  Output,
+  ViewEncapsulation,
+} from '@angular/core';
 
 @Component({
   selector: 'slider',
@@ -26,5 +32,4 @@ export class SliderComponent {
   onChange(value) {
     this.valueChange.emit(value);
   }
-
 }

src/lib/helpers/math.helpers.ts

@@ -46,9 +46,8 @@ export interface Point {
  * @returns an object holding the x/y coordinates of the midpoint.
  */
 export function moveTo(to: Point, from: Point, radius: number): Point {
-  const vector = { x: to.x - from.x, y: to.y - from.y };
-  const length = Math.sqrt(vector.x * vector.x + vector.y * vector.y);
-  const unitVector = { x: vector.x / length, y: vector.y / length };
+  const length = Math.sqrt((to.x - from.x) * (to.x - from.x) + (to.y - from.y) * (to.y - from.y));
+  const unitVector = { x: (to.x - from.x) / length, y: (to.y - from.y) / length };
 
   return {
     x: from.x + unitVector.x * radius,

src/lib/package.json

@@ -1,14 +1,15 @@
 {
   "name": "ngx-trend",
-  "version": "3.0.0",
+  "version": "3.0.1",
   "description": "ngx-trend Angular component",
   "main": "./bundles/trend.umd.js",
   "module": "./trend.es5.js",
   "es2015": "./trend.es2015.js",
   "typings": "./index.d.ts",
   "peerDependencies": {
     "@angular/core": ">=5.0.0 <=6.0.0",
-    "@angular/common": ">=5.0.0 <=6.0.0"
+    "@angular/common": ">=5.0.0 <=6.0.0",
+    "@angular/animations": ">=5.0.0 <=6.0.0"
   },
   "repository": "https://github.com/scttcper/ngx-trend.git",
   "homepage": "https://github.com/scttcper/ngx-trend",