{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "slideshow": {
     "slide_type": "skip"
    }
   },
   "outputs": [],
   "source": [
    "import numpy as np\n",
    "import matplotlib.pyplot as plt\n",
    "\n",
    "from ipywidgets import interact, interactive, fixed\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "source": [
    "# Welcome!\n",
    "This notebook demos an interactive cell within a slideshow using RISE"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "outputs": [],
   "source": [
    "# Let's define a function (this cell can be hidden from the slideshow if you like)\n",
    "\n",
    "import numpy as np\n",
    "import matplotlib.pyplot as plt\n",
    "from ipywidgets import interact\n",
    "\n",
    "def plot_graph(a=-0.1,b=0.8,c=-0.3):\n",
    "    # some arbitrary function of a,b,c\n",
    "    x = np.linspace(0,10,100)\n",
    "    y = a*a*np.square(x) + (b+a)*np.sin(x) + (c-a)*np.cos(x) + c*x\n",
    "    plt.plot(x,y)\n",
    "    plt.ylim(-30,30)\n",
    "    plt.show()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "source": [
    "### Executing a static function call\n",
    "Change the numbers in the function call, hit ctrl-enter and it will re-execute. Everything shifts down when you change a number and re-execute, then shifts back to the 'correct' position if you execute another time without changing anything."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "slideshow": {
     "slide_type": "fragment"
    }
   },
   "outputs": [],
   "source": [
    "# Here's a static evaluation with default args\n",
    "plot_graph(1.2,0.121,2.5)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "source": [
    "### Interactive widgets\n",
    "Now you can wiggle the sliders and see the effect on the graph. Yay! But if you re-execute the cell with ctrl-enter, the position will be broken. If you go back a slide and re-launch this slide, the position is correct again."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "slideshow": {
     "slide_type": "fragment"
    }
   },
   "outputs": [],
   "source": [
    "interact(plot_graph, a=(-2,2,0.2), b=(-2,3,0.1), c=(-2,2,0.1));"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "slideshow": {
     "slide_type": "skip"
    }
   },
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
  "celltoolbar": "Slideshow",
  "jupytext": {
   "cell_metadata_filter": "all",
   "notebook_metadata_filter": "all,-language_info,-toc,-jupytext.text_representation.jupytext_version"
  },
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.7.4"
  },
  "livereveal": {
   "autolaunch": true
  },
  "toc": {
   "base_numbering": 1,
   "nav_menu": {},
   "number_sections": true,
   "sideBar": true,
   "skip_h1_title": false,
   "title_cell": "Table of Contents",
   "title_sidebar": "Contents",
   "toc_cell": false,
   "toc_position": {},
   "toc_section_display": true,
   "toc_window_display": false
  }
 },
 "nbformat": 4,
 "nbformat_minor": 2
}