Find the cube root of a perfect cube - range

2015-06-02 12:52:29 -03:00 · 2015-06-02 12:52:29 -03:00 · eb20d59e1d
parent 6dc4301c3e
commit eb20d59e1d
6 changed files with 307 additions and 1 deletions
--- a/computer-science/01-introduction-to-cs-and-programming-mit/src/03-lecture.js
+++ b/computer-science/01-introduction-to-cs-and-programming-mit/src/03-lecture.js
@ -0,0 +1,70 @@
+// Modules
+var range  = require( 'range' ).range;
+var prompt = require( 'prompt' );
+
+// // Find the cube root of a perfect cube
+// prompt.start();
+// prompt.get([
+//   {
+//     name        : 'x',
+//     description : 'Enter a interger'
+//   }
+// ], function( err, results ) {
+
+//   var x   = parseInt( results.x, 10 );
+//   var ans = 0;
+
+//   while ( Math.pow( ans, 3 ) < Math.abs( x )) {
+
+//     ans += 1;
+//     console.log( 'Current guess:', ans );
+
+//   }
+
+//   if ( Math.pow( ans, 3 ) !== Math.abs( x )) {
+
+//     console.log( x, 'is not a perfect cube' );
+  
+//   } else {
+
+//     if ( x < 0 ) {
+//       ans = -ans;
+//     }
+
+//     console.log( 'Cube root of ' + x.toString() + ' is ' + ans.toString());
+
+//   }
+
+// });
+
+// Find the cube root of a perfect cube
+prompt.start();
+prompt.get([
+  {
+    name        : 'x',
+    description : 'Enter a interger'
+  }
+], function( err, results ) {
+
+  var x = parseInt( results.x, 10 );
+  var ans;
+
+  for ( ans in range( 0, Math.abs( x ) + 1 )) {
+
+    if ( Math.pow( ans, 3 ) === Math.abs( x )) {
+      break;
+    }
+
+  }
+
+  if ( Math.pow( ans, 3 ) !== Math.abs( x )) {
+
+    console.log( x + ' is not a perfect cube' );
+
+  } else {
+
+    console.log( 'Cube root of ' + x.toString() + ' is ' + ans.toString());
+
+  }
+
+});
--- a/computer-science/01-introduction-to-cs-and-programming-mit/src/node_modules/range/LICENSE.md
+++ b/computer-science/01-introduction-to-cs-and-programming-mit/src/node_modules/range/LICENSE.md
@ -0,0 +1,23 @@
+# FreeBSD License
+
+# Copyright 2011 Andrew Pennebaker. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation and/or
+other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHORS "AS IS" AND ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
--- a/computer-science/01-introduction-to-cs-and-programming-mit/src/node_modules/range/README.md
+++ b/computer-science/01-introduction-to-cs-and-programming-mit/src/node_modules/range/README.md
@ -0,0 +1,124 @@
+# range - A simple library for range(a, b, step).
+
+range.js is a Node library approximation of Python's `range()` function.
+
+# EXAMPLE
+
+```
+$ node
+> var range = require("range");
+> range.range(0, 20);
+[ 0,
+  1,
+  2,
+  3,
+  4,
+  5,
+  6,
+  7,
+  8,
+  9,
+  10,
+  11,
+  12,
+  13,
+  14,
+  15,
+  16,
+  17,
+  18,
+  19 ]
+> range.range(0, 20, 2);
+[ 0,
+  2,
+  4,
+  6,
+  8,
+  10,
+  12,
+  14,
+  16,
+  18 ]
+```
+
+# HOMEPAGE
+
+https://github.com/mcandre/node-range
+
+# NPM
+
+https://www.npmjs.com/package/range
+
+# LICENSE
+
+FreeBSD
+
+# REQUIREMENTS
+
+* [Node.js](http://nodejs.org/) 0.8+
+
+## Optional
+
+* [Ruby](https://www.ruby-lang.org/) 2+
+* [Bundler](http://bundler.io/)
+* [Guard](http://guardgem.org/)
+* [aspelllint](https://github.com/mcandre/aspelllint)
+
+# DEVELOPMENT
+
+## Test
+
+Ensure the example script works as expected:
+
+```
+$ npm test
+
+> range@0.0.2 test /Users/apennebaker/Desktop/src/node-range
+> mocha
+
+
+
+  range
+    range
+      ✓ should behave like Python range()
+
+
+  1 passing (5ms)
+```
+
+## Lint
+
+Keep the code tidy:
+
+```
+$ grunt lint
+```
+
+## Spell Check
+
+```
+$ aspelllint
+...
+```
+
+## Local CI
+
+Guard can automatically run testing when the code changes:
+
+```
+$ bundle
+$ guard -G Guardfile-cucumber
+...
+```
+
+Guard can automatically lint when the code changes:
+
+```
+$ bundle
+$ guard -G Guardfile-lint
+...
+```
+
+## Git Hooks
+
+See `hooks/`.
--- a/computer-science/01-introduction-to-cs-and-programming-mit/src/node_modules/range/lib/range.js
+++ b/computer-science/01-introduction-to-cs-and-programming-mit/src/node_modules/range/lib/range.js
@ -0,0 +1,28 @@
+"use strict";
+
+// Returns an array of integers starting at a, incrementing by step, ending before b.
+//
+// Example:
+//
+// > var range = require("range").range;
+// > range(0, 10);
+// [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
+
+function range(a, b, step) {
+  if (arguments.length === 1) {
+      b = a;
+      a = 0;
+  }
+
+  step = step || 1;
+
+  var x, r = [];
+
+  for (x = a; (b - x) * step > 0; x += step) {
+    r.push(x);
+  }
+
+  return r;
+}
+
+exports.range = range;
--- a/computer-science/01-introduction-to-cs-and-programming-mit/src/node_modules/range/package.json
+++ b/computer-science/01-introduction-to-cs-and-programming-mit/src/node_modules/range/package.json
@ -0,0 +1,60 @@
+{
+  "name": "range",
+  "description": "A simple library for range(a, b, step).",
+  "version": "0.0.3",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/mcandre/node-range.git"
+  },
+  "author": {
+    "name": "Andrew Pennebaker",
+    "email": "andrew.pennebaker@gmail.com",
+    "url": "http://www.yellosoft.us/"
+  },
+  "scripts": {
+    "exec": "exec",
+    "test": "mocha"
+  },
+  "engines": {
+    "node": ">=0.8"
+  },
+  "main": "lib/range",
+  "devDependencies": {
+    "cmp": "0.0.2",
+    "editorconfig-tools": ">= 0.0.1",
+    "eslint": ">= 0.15.0",
+    "grunt": "~0.4.2",
+    "grunt-cli": "~0.1.13",
+    "grunt-contrib-uglify": "^0.9.1",
+    "grunt-exec": "~0.4.5",
+    "jshint": ">=2.1.2",
+    "jslint": ">= 0.8.1",
+    "mocha": "^1.21.4"
+  },
+  "gitHead": "83bc5f63521e0bad88a5a2d0d3e668b203766745",
+  "bugs": {
+    "url": "https://github.com/mcandre/node-range/issues"
+  },
+  "homepage": "https://github.com/mcandre/node-range",
+  "_id": "range@0.0.3",
+  "_shasum": "b5b8eb2463a516b624a563bd32b18fe89e70151b",
+  "_from": "range@",
+  "_npmVersion": "2.6.0",
+  "_nodeVersion": "0.10.36",
+  "_npmUser": {
+    "name": "mcandre",
+    "email": "andrew.pennebaker@gmail.com"
+  },
+  "maintainers": [
+    {
+      "name": "mcandre",
+      "email": "andrew.pennebaker@gmail.com"
+    }
+  ],
+  "dist": {
+    "shasum": "b5b8eb2463a516b624a563bd32b18fe89e70151b",
+    "tarball": "http://registry.npmjs.org/range/-/range-0.0.3.tgz"
+  },
+  "directories": {},
+  "_resolved": "https://registry.npmjs.org/range/-/range-0.0.3.tgz"
+}
--- a/computer-science/01-introduction-to-cs-and-programming-mit/src/package.json
+++ b/computer-science/01-introduction-to-cs-and-programming-mit/src/package.json
@ -9,6 +9,7 @@
  "author": "Eric Douglas <eric.douglas.mail@gmail.com> (https://github.com/ericdouglas)",
  "license": "ISC",
  "dependencies": {
-    "prompt": "^0.2.14"
+    "prompt": "^0.2.14",
+    "range": "0.0.3"
  }
 }