Additional-gsldif-notes.html 4.0 KB

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  58. <h3 class="subsection">D.5.4 Additional <code>gsldif</code> notes</h3>
  59. <p>The function <var>f</var> may be any expressible virtual machine code
  60. function that takes a real argument to a real result, including one
  61. that uses other library functions. However, if <var>f</var> passes
  62. functions to other library functions as arguments, there is a constant
  63. overhead in stack space for each level, and a remote possibility of a
  64. <a name="index-segmentation-fault-7"></a>
  65. segmentation fault if they are very deeply nested.
  66. </p>
  67. <p>Numerical instability is an issue for higher derivatives (i.e.,
  68. differentiating a function that is obtained by differentiating another
  69. function). Some experimentation with larger tolerances may be needed.
  70. </p>
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