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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
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<!-- This manual is for MathGL (version 2.1.2), a collection of classes and routines for scientific plotting. Please report any errors in this manual to mathgl.abalakin@gmail.org.

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<title>MathGL 2.1.2: Table of Contents</title>

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<table cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[<a href="mathgl_en.html#Top" title="Cover (top) of document">Top</a>]</td>
<td valign="middle" align="left">[<a href="#SEC_Contents" title="Table of contents">Contents</a>]</td>
<td valign="middle" align="left">[<a href="mathgl_en_88.html#Index" title="Index">Index</a>]</td>
<td valign="middle" align="left">[<a href="mathgl_en_abt.html#SEC_About" title="About (help)"> ? </a>]</td>
</tr></table>
<h1>Table of Contents</h1>
<div class="contents">

<ul class="toc">
  <li><a name="toc-Overview-1" href="mathgl_en_1.html#Overview">1. Overview</a>
  <ul class="toc">
    <li><a name="toc-What-is-MathGL_003f-1" href="mathgl_en_2.html#What-is-MathGL_003f">1.1 What is MathGL?</a></li>
    <li><a name="toc-MathGL-features-1" href="mathgl_en_3.html#MathGL-features">1.2 MathGL features</a></li>
    <li><a name="toc-Installation-1" href="mathgl_en_4.html#Installation">1.3 Installation</a></li>
    <li><a name="toc-Quick-guide-1" href="mathgl_en_5.html#Quick-guide">1.4 Quick guide</a></li>
    <li><a name="toc-Changes-from-v_002e1_002e_002a" href="mathgl_en_6.html#Changes-from-v_002e1">1.5 Changes from v.1.*</a></li>
    <li><a name="toc-Utilities-for-parsing-MGL" href="mathgl_en_7.html#Utilities">1.6 Utilities for parsing MGL</a></li>
    <li><a name="toc-Thanks-1" href="mathgl_en_8.html#Thanks">1.7 Thanks</a></li>
  </ul></li>
  <li><a name="toc-MathGL-examples" href="mathgl_en_9.html#Examples">2. MathGL examples</a>
  <ul class="toc">
    <li><a name="toc-Basic-usage-1" href="mathgl_en_10.html#Basic-usage">2.1 Basic usage</a>
    <ul class="toc">
      <li><a name="toc-Using-MathGL-window-1" href="mathgl_en_10.html#Using-MathGL-window">2.1.1 Using MathGL window</a></li>
      <li><a name="toc-Drawing-to-file-1" href="mathgl_en_10.html#Drawing-to-file">2.1.2 Drawing to file</a></li>
      <li><a name="toc-Animation-1" href="mathgl_en_10.html#Animation">2.1.3 Animation</a></li>
      <li><a name="toc-Drawing-in-memory-1" href="mathgl_en_10.html#Drawing-in-memory">2.1.4 Drawing in memory</a></li>
      <li><a name="toc-Using-QMathGL-1" href="mathgl_en_10.html#Using-QMathGL">2.1.5 Using QMathGL</a></li>
      <li><a name="toc-MathGL-and-PyQt-1" href="mathgl_en_10.html#MathGL-and-PyQt">2.1.6 MathGL and PyQt</a></li>
      <li><a name="toc-MathGL-and-MPI-1" href="mathgl_en_10.html#MathGL-and-MPI">2.1.7 MathGL and MPI</a></li>
    </ul></li>
    <li><a name="toc-Advanced-usage-1" href="mathgl_en_11.html#Advanced-usage">2.2 Advanced usage</a>
    <ul class="toc">
      <li><a name="toc-Subplots-1" href="mathgl_en_11.html#Subplots">2.2.1 Subplots</a></li>
      <li><a name="toc-Axis-and-ticks-1" href="mathgl_en_11.html#Axis-and-ticks">2.2.2 Axis and ticks</a></li>
      <li><a name="toc-Curvilinear-coordinates-1" href="mathgl_en_11.html#Curvilinear-coordinates">2.2.3 Curvilinear coordinates</a></li>
      <li><a name="toc-Colorbars-1" href="mathgl_en_11.html#Colorbars">2.2.4 Colorbars</a></li>
      <li><a name="toc-Bounding-box-1" href="mathgl_en_11.html#Bounding-box">2.2.5 Bounding box</a></li>
      <li><a name="toc-Ternary-axis-1" href="mathgl_en_11.html#Ternary-axis">2.2.6 Ternary axis</a></li>
      <li><a name="toc-Text-features-1" href="mathgl_en_11.html#Text-features">2.2.7 Text features</a></li>
      <li><a name="toc-Legend-sample-1" href="mathgl_en_11.html#Legend-sample">2.2.8 Legend sample</a></li>
      <li><a name="toc-Cutting-sample-1" href="mathgl_en_11.html#Cutting-sample">2.2.9 Cutting sample</a></li>
    </ul></li>
    <li><a name="toc-Data-handling-1" href="mathgl_en_12.html#Data-handling">2.3 Data handling</a>
    <ul class="toc">
      <li><a name="toc-Array-creation-1" href="mathgl_en_12.html#Array-creation">2.3.1 Array creation</a></li>
      <li><a name="toc-Linking-array-1" href="mathgl_en_12.html#Linking-array">2.3.2 Linking array</a></li>
      <li><a name="toc-Change-data-1" href="mathgl_en_12.html#Change-data">2.3.3 Change data</a></li>
    </ul></li>
    <li><a name="toc-Data-plotting-1" href="mathgl_en_13.html#Data-plotting">2.4 Data plotting</a></li>
    <li><a name="toc-1D-samples-1" href="mathgl_en_14.html#g_t1D-samples">2.5 1D samples</a>
    <ul class="toc">
      <li><a name="toc-Plot-sample-1" href="mathgl_en_14.html#Plot-sample">2.5.1 Plot sample</a></li>
      <li><a name="toc-Radar-sample-1" href="mathgl_en_14.html#Radar-sample">2.5.2 Radar sample</a></li>
      <li><a name="toc-Step-sample-1" href="mathgl_en_14.html#Step-sample">2.5.3 Step sample</a></li>
      <li><a name="toc-Tens-sample-1" href="mathgl_en_14.html#Tens-sample">2.5.4 Tens sample</a></li>
      <li><a name="toc-Area-sample-1" href="mathgl_en_14.html#Area-sample">2.5.5 Area sample</a></li>
      <li><a name="toc-Region-sample-1" href="mathgl_en_14.html#Region-sample">2.5.6 Region sample</a></li>
      <li><a name="toc-Stem-sample-1" href="mathgl_en_14.html#Stem-sample">2.5.7 Stem sample</a></li>
      <li><a name="toc-Bars-sample-1" href="mathgl_en_14.html#Bars-sample">2.5.8 Bars sample</a></li>
      <li><a name="toc-Barh-sample-1" href="mathgl_en_14.html#Barh-sample">2.5.9 Barh sample</a></li>
      <li><a name="toc-Cones-sample-1" href="mathgl_en_14.html#Cones-sample">2.5.10 Cones sample</a></li>
      <li><a name="toc-Chart-sample-1" href="mathgl_en_14.html#Chart-sample">2.5.11 Chart sample</a></li>
      <li><a name="toc-BoxPlot-sample-1" href="mathgl_en_14.html#BoxPlot-sample">2.5.12 BoxPlot sample</a></li>
      <li><a name="toc-Candle-sample-1" href="mathgl_en_14.html#Candle-sample">2.5.13 Candle sample</a></li>
      <li><a name="toc-Error-sample-1" href="mathgl_en_14.html#Error-sample">2.5.14 Error sample</a></li>
      <li><a name="toc-Mark-sample-1" href="mathgl_en_14.html#Mark-sample">2.5.15 Mark sample</a></li>
      <li><a name="toc-TextMark-sample-1" href="mathgl_en_14.html#TextMark-sample">2.5.16 TextMark sample</a></li>
      <li><a name="toc-Label-sample-1" href="mathgl_en_14.html#Label-sample">2.5.17 Label sample</a></li>
      <li><a name="toc-Table-sample-1" href="mathgl_en_14.html#Table-sample">2.5.18 Table sample</a></li>
      <li><a name="toc-Tube-sample-1" href="mathgl_en_14.html#Tube-sample">2.5.19 Tube sample</a></li>
      <li><a name="toc-Tape-sample-1" href="mathgl_en_14.html#Tape-sample">2.5.20 Tape sample</a></li>
      <li><a name="toc-Torus-sample-1" href="mathgl_en_14.html#Torus-sample">2.5.21 Torus sample</a></li>
    </ul></li>
    <li><a name="toc-2D-samples-1" href="mathgl_en_15.html#g_t2D-samples">2.6 2D samples</a>
    <ul class="toc">
      <li><a name="toc-Surf-sample-1" href="mathgl_en_15.html#Surf-sample">2.6.1 Surf sample</a></li>
      <li><a name="toc-SurfC-sample-1" href="mathgl_en_15.html#SurfC-sample">2.6.2 SurfC sample</a></li>
      <li><a name="toc-SurfA-sample-1" href="mathgl_en_15.html#SurfA-sample">2.6.3 SurfA sample</a></li>
      <li><a name="toc-Mesh-sample-1" href="mathgl_en_15.html#Mesh-sample">2.6.4 Mesh sample</a></li>
      <li><a name="toc-Fall-sample-1" href="mathgl_en_15.html#Fall-sample">2.6.5 Fall sample</a></li>
      <li><a name="toc-Belt-sample-1" href="mathgl_en_15.html#Belt-sample">2.6.6 Belt sample</a></li>
      <li><a name="toc-Boxs-sample-1" href="mathgl_en_15.html#Boxs-sample">2.6.7 Boxs sample</a></li>
      <li><a name="toc-Tile-sample-1" href="mathgl_en_15.html#Tile-sample">2.6.8 Tile sample</a></li>
      <li><a name="toc-TileS-sample-1" href="mathgl_en_15.html#TileS-sample">2.6.9 TileS sample</a></li>
      <li><a name="toc-Dens-sample-1" href="mathgl_en_15.html#Dens-sample">2.6.10 Dens sample</a></li>
      <li><a name="toc-Cont-sample-1" href="mathgl_en_15.html#Cont-sample">2.6.11 Cont sample</a></li>
      <li><a name="toc-ContF-sample-1" href="mathgl_en_15.html#ContF-sample">2.6.12 ContF sample</a></li>
      <li><a name="toc-ContD-sample-1" href="mathgl_en_15.html#ContD-sample">2.6.13 ContD sample</a></li>
      <li><a name="toc-ContV-sample-1" href="mathgl_en_15.html#ContV-sample">2.6.14 ContV sample</a></li>
      <li><a name="toc-Axial-sample-1" href="mathgl_en_15.html#Axial-sample">2.6.15 Axial sample</a></li>
      <li><a name="toc-Grad-sample-1" href="mathgl_en_15.html#Grad-sample">2.6.16 Grad sample</a></li>
    </ul></li>
    <li><a name="toc-3D-samples-1" href="mathgl_en_16.html#g_t3D-samples">2.7 3D samples</a>
    <ul class="toc">
      <li><a name="toc-Surf3-sample-1" href="mathgl_en_16.html#Surf3-sample">2.7.1 Surf3 sample</a></li>
      <li><a name="toc-Surf3C-sample-1" href="mathgl_en_16.html#Surf3C-sample">2.7.2 Surf3C sample</a></li>
      <li><a name="toc-Surf3A-sample-1" href="mathgl_en_16.html#Surf3A-sample">2.7.3 Surf3A sample</a></li>
      <li><a name="toc-Cloud-sample-1" href="mathgl_en_16.html#Cloud-sample">2.7.4 Cloud sample</a></li>
      <li><a name="toc-Dens3-sample-1" href="mathgl_en_16.html#Dens3-sample">2.7.5 Dens3 sample</a></li>
      <li><a name="toc-Cont3-sample-1" href="mathgl_en_16.html#Cont3-sample">2.7.6 Cont3 sample</a></li>
      <li><a name="toc-ContF3-sample-1" href="mathgl_en_16.html#ContF3-sample">2.7.7 ContF3 sample</a></li>
      <li><a name="toc-Dens-projection-sample-1" href="mathgl_en_16.html#Dens-projection-sample">2.7.8 Dens projection sample</a></li>
      <li><a name="toc-Cont-projection-sample-1" href="mathgl_en_16.html#Cont-projection-sample">2.7.9 Cont projection sample</a></li>
      <li><a name="toc-ContF-projection-sample-1" href="mathgl_en_16.html#ContF-projection-sample">2.7.10 ContF projection sample</a></li>
      <li><a name="toc-TriPlot-and-QuadPlot-1" href="mathgl_en_16.html#TriPlot-and-QuadPlot">2.7.11 TriPlot and QuadPlot</a></li>
      <li><a name="toc-Dots-sample-1" href="mathgl_en_16.html#Dots-sample">2.7.12 Dots sample</a></li>
    </ul></li>
    <li><a name="toc-Vector-field-samples-1" href="mathgl_en_17.html#Vector-field-samples">2.8 Vector field samples</a>
    <ul class="toc">
      <li><a name="toc-Vect-sample-1" href="mathgl_en_17.html#Vect-sample">2.8.1 Vect sample</a></li>
      <li><a name="toc-Vect3-sample-1" href="mathgl_en_17.html#Vect3-sample">2.8.2 Vect3 sample</a></li>
      <li><a name="toc-Traj-sample-1" href="mathgl_en_17.html#Traj-sample">2.8.3 Traj sample</a></li>
      <li><a name="toc-Flow-sample-1" href="mathgl_en_17.html#Flow-sample">2.8.4 Flow sample</a></li>
      <li><a name="toc-Pipe-sample-1" href="mathgl_en_17.html#Pipe-sample">2.8.5 Pipe sample</a></li>
      <li><a name="toc-Dew-sample-1" href="mathgl_en_17.html#Dew-sample">2.8.6 Dew sample</a></li>
    </ul></li>
    <li><a name="toc-Hints-1" href="mathgl_en_18.html#Hints">2.9 Hints</a>
    <ul class="toc">
      <li><a name="toc-_0060_0060Compound_0027_0027-graphics-1" href="mathgl_en_18.html#g_t_0060_0060Compound_0027_0027-graphics">2.9.1 &ldquo;Compound&rdquo; graphics</a></li>
      <li><a name="toc-Transparency-and-lighting-1" href="mathgl_en_18.html#Transparency-and-lighting">2.9.2 Transparency and lighting</a></li>
      <li><a name="toc-Types-of-transparency-1" href="mathgl_en_18.html#Types-of-transparency">2.9.3 Types of transparency</a></li>
      <li><a name="toc-Axis-projection-1" href="mathgl_en_18.html#Axis-projection">2.9.4 Axis projection</a></li>
      <li><a name="toc-Adding-fog-1" href="mathgl_en_18.html#Adding-fog">2.9.5 Adding fog</a></li>
      <li><a name="toc-Several-light-sources-1" href="mathgl_en_18.html#Several-light-sources">2.9.6 Several light sources</a></li>
      <li><a name="toc-Using-primitives-1" href="mathgl_en_18.html#Using-primitives">2.9.7 Using primitives</a></li>
      <li><a name="toc-STFA-sample-1" href="mathgl_en_18.html#STFA-sample">2.9.8 STFA sample</a></li>
      <li><a name="toc-Mapping-visualization-1" href="mathgl_en_18.html#Mapping-visualization">2.9.9 Mapping visualization</a></li>
      <li><a name="toc-Making-histogram-1" href="mathgl_en_18.html#Making-histogram">2.9.10 Making histogram</a></li>
      <li><a name="toc-Nonlinear-fitting-hints" href="mathgl_en_18.html#Nonlinear-fitting-sample">2.9.11 Nonlinear fitting hints</a></li>
      <li><a name="toc-PDE-solving-hints-1" href="mathgl_en_18.html#PDE-solving-hints">2.9.12 PDE solving hints</a></li>
      <li><a name="toc-MGL-parser-using-1" href="mathgl_en_18.html#MGL-parser-using">2.9.13 MGL parser using</a></li>
      <li><a name="toc-Using-options-1" href="mathgl_en_18.html#Using-options">2.9.14 Using options</a></li>
      <li><a name="toc-_0060_0060Templates_0027_0027-1" href="mathgl_en_18.html#g_t_0060_0060Templates_0027_0027">2.9.15 &ldquo;Templates&rdquo;</a></li>
      <li><a name="toc-Stereo-image-1" href="mathgl_en_18.html#Stereo-image">2.9.16 Stereo image</a></li>
      <li><a name="toc-Reduce-memory-usage-1" href="mathgl_en_18.html#Reduce-memory-usage">2.9.17 Reduce memory usage</a></li>
    </ul></li>
    <li><a name="toc-FAQ-1" href="mathgl_en_19.html#FAQ">2.10 FAQ</a></li>
  </ul></li>
  <li><a name="toc-General-concepts-1" href="mathgl_en_20.html#General-concepts">3. General concepts</a>
  <ul class="toc">
    <li><a name="toc-Coordinate-axes-1" href="mathgl_en_21.html#Coordinate-axes">3.1 Coordinate axes</a></li>
    <li><a name="toc-Color-styles-1" href="mathgl_en_22.html#Color-styles">3.2 Color styles</a></li>
    <li><a name="toc-Line-styles-1" href="mathgl_en_23.html#Line-styles">3.3 Line styles</a></li>
    <li><a name="toc-Color-scheme-1" href="mathgl_en_24.html#Color-scheme">3.4 Color scheme</a></li>
    <li><a name="toc-Font-styles-1" href="mathgl_en_25.html#Font-styles">3.5 Font styles</a></li>
    <li><a name="toc-Textual-formulas-1" href="mathgl_en_26.html#Textual-formulas">3.6 Textual formulas</a></li>
    <li><a name="toc-Command-options-1" href="mathgl_en_27.html#Command-options">3.7 Command options</a></li>
    <li><a name="toc-Interfaces-1" href="mathgl_en_28.html#Interfaces">3.8 Interfaces</a>
    <ul class="toc">
      <li><a name="toc-C_002fFortran-interface" href="mathgl_en_28.html#C-interface">3.8.1 C/Fortran interface</a></li>
      <li><a name="toc-C_002b_002b_002fPython-interface" href="mathgl_en_28.html#C_002b_002b-interface">3.8.2 C++/Python interface</a></li>
    </ul>
</li>
  </ul></li>
  <li><a name="toc-MathGL-core-1" href="mathgl_en_29.html#MathGL-core">4. MathGL core</a>
  <ul class="toc">
    <li><a name="toc-Create-and-delete-objects" href="mathgl_en_30.html#Constructor">4.1 Create and delete objects</a></li>
    <li><a name="toc-Graphics-setup-1" href="mathgl_en_31.html#Graphics-setup">4.2 Graphics setup</a>
    <ul class="toc">
      <li><a name="toc-Transparency-1" href="mathgl_en_31.html#Transparency">4.2.1 Transparency</a></li>
      <li><a name="toc-Lighting-1" href="mathgl_en_31.html#Lighting">4.2.2 Lighting</a></li>
      <li><a name="toc-Fog-1" href="mathgl_en_31.html#Fog">4.2.3 Fog</a></li>
      <li><a name="toc-Default-sizes-1" href="mathgl_en_31.html#Default-sizes">4.2.4 Default sizes</a></li>
      <li><a name="toc-Cutting-1" href="mathgl_en_31.html#Cutting">4.2.5 Cutting</a></li>
      <li><a name="toc-Font-settings-1" href="mathgl_en_31.html#Font-settings">4.2.6 Font settings</a></li>
      <li><a name="toc-Palette-and-colors-1" href="mathgl_en_31.html#Palette-and-colors">4.2.7 Palette and colors</a></li>
      <li><a name="toc-Error-handling-1" href="mathgl_en_31.html#Error-handling">4.2.8 Error handling</a></li>
    </ul></li>
    <li><a name="toc-Axis-settings-1" href="mathgl_en_32.html#Axis-settings">4.3 Axis settings</a>
    <ul class="toc">
      <li><a name="toc-Ranges-_0028bounding-box_0029-1" href="mathgl_en_32.html#Ranges-_0028bounding-box_0029">4.3.1 Ranges (bounding box)</a></li>
      <li><a name="toc-Curved-coordinates-1" href="mathgl_en_32.html#Curved-coordinates">4.3.2 Curved coordinates</a></li>
      <li><a name="toc-Ticks-1" href="mathgl_en_32.html#Ticks">4.3.3 Ticks</a></li>
    </ul></li>
    <li><a name="toc-Subplots-and-rotation-1" href="mathgl_en_33.html#Subplots-and-rotation">4.4 Subplots and rotation</a></li>
    <li><a name="toc-Export-picture-1" href="mathgl_en_34.html#Export-picture">4.5 Export picture</a>
    <ul class="toc">
      <li><a name="toc-Export-to-file-1" href="mathgl_en_34.html#Export-to-file">4.5.1 Export to file</a></li>
      <li><a name="toc-Frames_002fAnimation-1" href="mathgl_en_34.html#Frames_002fAnimation">4.5.2 Frames/Animation</a></li>
      <li><a name="toc-Bitmap-in-memory-1" href="mathgl_en_34.html#Bitmap-in-memory">4.5.3 Bitmap in memory</a></li>
      <li><a name="toc-Parallelization-1" href="mathgl_en_34.html#Parallelization">4.5.4 Parallelization</a></li>
    </ul></li>
    <li><a name="toc-Primitives-1" href="mathgl_en_35.html#Primitives">4.6 Primitives</a></li>
    <li><a name="toc-Text-printing-1" href="mathgl_en_36.html#Text-printing">4.7 Text printing</a></li>
    <li><a name="toc-Axis-and-Colorbar-1" href="mathgl_en_37.html#Axis-and-Colorbar">4.8 Axis and Colorbar</a></li>
    <li><a name="toc-Legend-1" href="mathgl_en_38.html#Legend">4.9 Legend</a></li>
    <li><a name="toc-1D-plotting-1" href="mathgl_en_39.html#g_t1D-plotting">4.10 1D plotting</a></li>
    <li><a name="toc-2D-plotting-1" href="mathgl_en_40.html#g_t2D-plotting">4.11 2D plotting</a></li>
    <li><a name="toc-3D-plotting-1" href="mathgl_en_41.html#g_t3D-plotting">4.12 3D plotting</a></li>
    <li><a name="toc-Dual-plotting-1" href="mathgl_en_42.html#Dual-plotting">4.13 Dual plotting</a></li>
    <li><a name="toc-Vector-fields-1" href="mathgl_en_43.html#Vector-fields">4.14 Vector fields</a></li>
    <li><a name="toc-Other-plotting-1" href="mathgl_en_44.html#Other-plotting">4.15 Other plotting</a></li>
    <li><a name="toc-Nonlinear-fitting-1" href="mathgl_en_45.html#Nonlinear-fitting">4.16 Nonlinear fitting</a></li>
    <li><a name="toc-Data-manipulation-1" href="mathgl_en_46.html#Data-manipulation">4.17 Data manipulation</a></li>
  </ul></li>
  <li><a name="toc-Widget-classes-1" href="mathgl_en_47.html#Widget-classes">5. Widget classes</a>
  <ul class="toc">
    <li><a name="toc-mglWindow-class-1" href="mathgl_en_48.html#mglWindow-class">5.1 mglWindow class</a></li>
    <li><a name="toc-Fl_005fMathGL-class-1" href="mathgl_en_49.html#Fl_005fMathGL-class">5.2 Fl_MathGL class</a></li>
    <li><a name="toc-QMathGL-class-1" href="mathgl_en_50.html#QMathGL-class">5.3 QMathGL class</a></li>
  </ul></li>
  <li><a name="toc-Data-processing-1" href="mathgl_en_51.html#Data-processing">6. Data processing</a>
  <ul class="toc">
    <li><a name="toc-Public-variables-1" href="mathgl_en_52.html#Public-variables">6.1 Public variables</a></li>
    <li><a name="toc-Data-constructor-1" href="mathgl_en_53.html#Data-constructor">6.2 Data constructor</a></li>
    <li><a name="toc-Data-resizing-1" href="mathgl_en_54.html#Data-resizing">6.3 Data resizing</a></li>
    <li><a name="toc-Data-filling-1" href="mathgl_en_55.html#Data-filling">6.4 Data filling</a></li>
    <li><a name="toc-File-I_002fO-1" href="mathgl_en_56.html#File-I_002fO">6.5 File I/O</a></li>
    <li><a name="toc-Make-another-data-1" href="mathgl_en_57.html#Make-another-data">6.6 Make another data</a></li>
    <li><a name="toc-Data-changing-1" href="mathgl_en_58.html#Data-changing">6.7 Data changing</a></li>
    <li><a name="toc-Interpolation-1" href="mathgl_en_59.html#Interpolation">6.8 Interpolation</a></li>
    <li><a name="toc-Data-information-1" href="mathgl_en_60.html#Data-information">6.9 Data information</a></li>
    <li><a name="toc-Operators-1" href="mathgl_en_61.html#Operators">6.10 Operators</a></li>
    <li><a name="toc-Global-functions-1" href="mathgl_en_62.html#Global-functions">6.11 Global functions</a></li>
    <li><a name="toc-Evaluate-expression-1" href="mathgl_en_63.html#Evaluate-expression">6.12 Evaluate expression</a></li>
    <li><a name="toc-MGL-variables-1" href="mathgl_en_64.html#MGL-variables">6.13 MGL variables</a></li>
  </ul></li>
  <li><a name="toc-MGL-scripts-1" href="mathgl_en_65.html#MGL-scripts">7. MGL scripts</a>
  <ul class="toc">
    <li><a name="toc-MGL-definition-1" href="mathgl_en_66.html#MGL-definition">7.1 MGL definition</a></li>
    <li><a name="toc-Program-flow-commands-1" href="mathgl_en_67.html#Program-flow-commands">7.2 Program flow commands</a></li>
    <li><a name="toc-mglParse-class-1" href="mathgl_en_68.html#mglParse-class">7.3 mglParse class</a></li>
  </ul></li>
  <li><a name="toc-UDAV-1" href="mathgl_en_69.html#UDAV">8. UDAV</a>
  <ul class="toc">
    <li><a name="toc-UDAV-overview-1" href="mathgl_en_70.html#UDAV-overview">8.1 UDAV overview</a></li>
    <li><a name="toc-UDAV-dialogs-1" href="mathgl_en_71.html#UDAV-dialogs">8.2 UDAV dialogs</a></li>
    <li><a name="toc-UDAV-hints-1" href="mathgl_en_72.html#UDAV-hints">8.3 UDAV hints</a></li>
  </ul></li>
  <li><a name="toc-Other-classes-1" href="mathgl_en_73.html#Other-classes">9. Other classes</a>
  <ul class="toc">
    <li><a name="toc-Define-new-kind-of-plot-_0028mglBase-class_0029" href="mathgl_en_74.html#mglBase-class">9.1 Define new kind of plot (mglBase class)</a></li>
    <li><a name="toc-User-defined-types-_0028mglDataA-class_0029" href="mathgl_en_75.html#mglDataA-class">9.2 User defined types (mglDataA class)</a></li>
    <li><a name="toc-mglColor-class-1" href="mathgl_en_76.html#mglColor-class">9.3 mglColor class</a></li>
    <li><a name="toc-mglPoint-class-1" href="mathgl_en_77.html#mglPoint-class">9.4 mglPoint class</a></li>
  </ul></li>
  <li><a name="toc-Symbols-and-hot_002dkeys-1" href="mathgl_en_78.html#Symbols-and-hot_002dkeys">A. Symbols and hot-keys</a>
  <ul class="toc">
    <li><a name="toc-Symbols-for-styles-1" href="mathgl_en_79.html#Symbols-for-styles">A.1 Symbols for styles</a></li>
    <li><a name="toc-Hot_002dkeys-for-mglview-1" href="mathgl_en_80.html#Hot_002dkeys-for-mglview">A.2 Hot-keys for mglview</a></li>
    <li><a name="toc-Hot_002dkeys-for-UDAV-1" href="mathgl_en_81.html#Hot_002dkeys-for-UDAV">A.3 Hot-keys for UDAV</a></li>
  </ul></li>
  <li><a name="toc-File-formats-1" href="mathgl_en_82.html#File-formats">B. File formats</a>
  <ul class="toc">
    <li><a name="toc-Font-files-1" href="mathgl_en_83.html#Font-files">B.1 Font files</a></li>
    <li><a name="toc-MGLD-format-1" href="mathgl_en_84.html#MGLD-format">B.2 MGLD format</a></li>
    <li><a name="toc-JSON-format-1" href="mathgl_en_85.html#JSON-format">B.3 JSON format</a></li>
  </ul></li>
  <li><a name="toc-TeX_002dlike-symbols-1" href="mathgl_en_86.html#TeX_002dlike-symbols">C. TeX-like symbols</a></li>
  <li><a name="toc-GNU-Free-Documentation-License" href="mathgl_en_87.html#Copying-This-Manual">D. GNU Free Documentation License</a></li>
  <li><a name="toc-Index-1" href="mathgl_en_88.html#Index">Index</a></li>
</ul>
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