<p>The <b>ACOT</b> function is one of the math and trigonometry functions. It is used to return the principal value of the arccotangent, or inverse cotangent, of a number. The returned angle is measured in radians in the range 0 to Pi.</p>
<p>where <b><em>x</em></b> is the cotangent of the angle you wish to find, a numeric value entered manually or included into the cell you make reference to.</p>
<p>To apply the <b>ACOT</b> function,</p>
<ol>
<li>select the cell where you wish to display the result,</li>