.ipynb

{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [],
   "source": [
    "import numpy as np\n",
    "import matplotlib.pyplot as plt \n",
    "import matplotlib.animation as ani\n",
    "import matplotlib.cm as cm \n",
    "\n",
    "# allows animation features within notebook\n",
    "%matplotlib notebook"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {},
   "outputs": [],
   "source": [
    "timesteps = np.arange(-1,1,0.01)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "metadata": {},
   "outputs": [],
   "source": [
    "class particle:\n",
    "    def __init__(self, timesteps, mass = 1, charge = 1, force = np.zeros(timesteps.size), dt = timesteps.size/1000):\n",
    "             \n",
    "        self.mass = mass\n",
    "        self.charge = charge\n",
    "        self.timesteps = timesteps\n",
    "        self.force = force\n",
    "        self.dt = dt\n",
    "        \n",
    "        self.pos = np.zeros((self.timesteps.size, 3))\n",
    "        self.vel = np.zeros((self.timesteps.size, 3))\n",
    "        self.accel = np.zeros((self.timesteps.size, 3))\n",
    "        \n",
    "    def update(self,force):\n",
    "        self.accel - self.forcce/self.mass\n",
    "        self.vel = self.accel*dt\n",
    "        self.pos = self.vel*dt\n",
    "        \n",
    "        "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 32,
   "metadata": {},
   "outputs": [],
   "source": [
    "# now we set up an array of particle objects\n",
    "N = 3\n",
    "Particle_list = []\n",
    "for i in range(N):\n",
    "    Particle_list.append(particle)\n",
    "#abc = particle(timesteps)\n",
    "\n",
    "def calc_forces(particle):\n",
    "    for i in range(N):\n",
    "        for j in range(N):\n",
    "            if i == j:\n",
    "                Particle_list[i].force+=0\n",
    "            else:\n",
    "                Particle_list[i].force+= 1/(np.linalg.norm(Particle_list[i].pos - Particle_list[j].pos))**2\n",
    "\n"
   ]
  }
 ],
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