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@ -3015,7 +3015,7 @@ and 2 for a 1D array of points:</p>
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<pre><span></span><code><span class="gp">>>> </span><span class="n">fig</span><span class="p">,</span> <span class="n">ax</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplots</span><span class="p">()</span>
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<span class="gp">>>> </span><span class="n">x</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">linspace</span><span class="p">(</span><span class="o">-</span><span class="mf">5.</span><span class="p">,</span> <span class="mf">5.</span><span class="p">,</span> <span class="mi">1000</span><span class="p">)</span>
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<span class="gp">>>> </span><span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">4</span><span class="p">):</span>
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<span class="gp">... </span> <span class="n">ax</span><span class="o">.</span><span class="n">plot</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">ive</span><span class="p">(</span><span class="n">i</span><span class="p">,</span> <span class="n">x</span><span class="p">),</span> <span class="n">label</span><span class="o">=</span><span class="sa">f</span><span class="s1">'$I_</span><span class="si">{</span><span class="n">i</span><span class="si">!r}</span><span class="s1">(z)\cdot e^</span><span class="se">{{</span><span class="s1">-|z|</span><span class="se">}}</span><span class="s1">$'</span><span class="p">)</span>
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<span class="gp">... </span> <span class="n">ax</span><span class="o">.</span><span class="n">plot</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">ive</span><span class="p">(</span><span class="n">i</span><span class="p">,</span> <span class="n">x</span><span class="p">),</span> <span class="n">label</span><span class="o">=</span><span class="sa">fr</span><span class="s1">'$I_</span><span class="si">{</span><span class="n">i</span><span class="si">!r}</span><span class="s1">(z)\cdot e^</span><span class="se">{{</span><span class="s1">-|z|</span><span class="se">}}</span><span class="s1">$'</span><span class="p">)</span>
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<span class="gp">>>> </span><span class="n">ax</span><span class="o">.</span><span class="n">legend</span><span class="p">()</span>
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<span class="gp">>>> </span><span class="n">ax</span><span class="o">.</span><span class="n">set_xlabel</span><span class="p">(</span><span class="sa">r</span><span class="s2">"$z$"</span><span class="p">)</span>
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<span class="gp">>>> </span><span class="n">plt</span><span class="o">.</span><span class="n">show</span><span class="p">()</span>
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@ -3701,11 +3701,14 @@ as NaN. Default is False (no sign information).</p>
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<li><strong>res</strong> (ndarray):
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The result, <code>np.log(np.sum(np.exp(a)))</code> calculated in a numerically
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more stable way. If <code>b</code> is given then <code>np.log(np.sum(b*np.exp(a)))</code>
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is returned.</li>
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is returned. If <code>return_sign</code> is True, <code>res</code> contains the log of
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the absolute value of the argument.</li>
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<li><strong>sgn</strong> (ndarray):
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If return_sign is True, this will be an array of floating-point
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numbers matching res and +1, 0, or -1 depending on the sign
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of the result. If False, only one result is returned.</li>
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If <code>return_sign</code> is True, this will be an array of floating-point
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numbers matching res containing +1, 0, -1 (for real-valued inputs)
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or a complex phase (for complex inputs). This gives the sign of the
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argument of the logarithm in <code>res</code>.
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If <code>return_sign</code> is False, only one result is returned.</li>
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</ul>
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<h6 id="see-also">See Also</h6>
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