h sample point. It is allowed to
 mix some calls with values only with calls with values and first
 derivatives.
 </p>
 <p>
 The point abscissae for all calls <em>must</em> be different.
 </p></div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>x</code> - abscissa of the sample point</dd><dd><code>value</code> - value and derivatives of the sample point
 (if only one row is passed, it is the value, if two rows are
 passed the first one is the value and the second the derivative
 and so on)</