{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"### Plotting from an analytic function expression\n",
"\n",
"#### Plot in cartesian coordinate system"
]
},
{
"cell_type": "code",
"execution_count": 1,
"metadata": {
"collapsed": false
},
"outputs": [
{
"data": {
"image/svg+xml": [
"\n",
"\n",
"\n",
"\n"
],
"text/plain": [
"# \"lines\", :lt => {:rgb=>\"blue\", :lw=>3}]>], @options=Hamster::Hash[:xrange => -10..10, :title => \"Math function example\", :ylabel => \"x\", :xlabel => \"x*sin(x)\"], @already_plotted=true, @cmd=\"plot \", @terminal=#&1\", @current_datablock=0, @err_array=[], @in=#>>"
]
},
"execution_count": 1,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"require 'gnuplotrb'\n",
"include GnuplotRB\n",
"\n",
"cartesian = Plot.new(\n",
" ['x*sin(x)', with: 'lines', lt: { rgb: 'blue', lw: 3 }],\n",
" xrange: -10..10,\n",
" title: 'Math function example', \n",
" ylabel: 'x',\n",
" xlabel: 'x*sin(x)'\n",
")"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"#### Plot in polar coordinate system"
]
},
{
"cell_type": "code",
"execution_count": 2,
"metadata": {
"collapsed": false
},
"outputs": [
{
"data": {
"image/svg+xml": [
"\n",
"\n",
"\n",
"\n"
],
"text/plain": [
"# \"filledcurves\", :lt => {:rgb=>\"red\"}]>], @options=Hamster::Hash[:samples => 500, :title => \"Plot in polar example\", :polar => true], @already_plotted=true, @cmd=\"plot \", @terminal=#&1\", @current_datablock=0, @err_array=[], @in=#>>"
]
},
"execution_count": 2,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"Plot.new(\n",
" ['abs(sin(3*t))', with: 'filledcurves', lt: { rgb: 'red' }],\n",
" title: 'Plot in polar example',\n",
" polar: true,\n",
" samples: 500\n",
")"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"#### Plot from a parametric function expression"
]
},
{
"cell_type": "code",
"execution_count": 3,
"metadata": {
"collapsed": false
},
"outputs": [
{
"data": {
"image/svg+xml": [
"\n",
"\n",
"\n",
"\n"
],
"text/plain": [
"# 2, :title => \"Parametric curve\"]>], @options=Hamster::Hash[:samples => 1000, :title => \"Parametric plot example\", :xrange => -3..3, :yrange => -3..3, :parametric => true], @already_plotted=true, @cmd=\"plot \", @terminal=#&1\", @current_datablock=0, @err_array=[], @in=#>>"
]
},
"execution_count": 3,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"Plot.new(\n",
" ['1.5*cos(t) - cos(30*t), 1.5*sin(t) - sin(30*t)', title: 'Parametric curve', lw: 2],\n",
" title: 'Parametric plot example',\n",
" parametric: true,\n",
" samples: 1000,\n",
" xrange: -3..3,\n",
" yrange: -3..3\n",
")"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Ruby 2.1.2",
"language": "ruby",
"name": "ruby"
},
"language_info": {
"file_extension": "rb",
"mimetype": "application/x-ruby",
"name": "ruby",
"version": "2.1.2"
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"nbformat": 4,
"nbformat_minor": 0
}