<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">I wrote the following function:<div class=""><br class=""></div><div class=""><pre style="font-family: Monospaced;" class=""><span style="color:rgb(176,24,19);" class="">function</span> <span style="color:rgb(74,85,219);" class="">[</span><span style="color:rgb(131,67,16);font-weight:bold;" class="">x</span><span style="color:rgb(74,85,219);" class="">]</span><span style="color:rgb(92,92,92);" class="">=</span><span style="text-decoration: underline;" class="">isprime</span><span style="color:rgb(74,85,219);" class="">(</span><span style="color:rgb(131,67,16);font-weight:bold;" class="">num</span><span style="color:rgb(74,85,219);" class="">)</span>
vect<span style="color:rgb(92,92,92);" class="">=</span><span style="color:rgb(174,92,176);text-decoration:underline;" class="">factor</span><span style="color:rgb(74,85,219);" class="">(</span><span style="color:rgb(131,67,16);font-weight:bold;" class="">num</span><span style="color:rgb(74,85,219);" class="">)</span>;
<span style="color:rgb(160,32,240);" class="">if</span> <span style="color:rgb(50,185,185);" class="">length</span><span style="color:rgb(74,85,219);" class="">(</span>vect<span style="color:rgb(74,85,219);" class="">)</span><span style="color:rgb(92,92,92);" class="">==</span><span style="color:rgb(188,143,143);" class="">1</span> <span style="color:rgb(160,32,240);" class="">then</span>
<span style="color:rgb(131,67,16);font-weight:bold;" class="">x</span><span style="color:rgb(92,92,92);" class="">=</span><span style="color:rgb(188,143,143);" class="">1</span>;
<span style="color:rgb(160,32,240);" class="">else</span>
<span style="color:rgb(131,67,16);font-weight:bold;" class="">x</span><span style="color:rgb(92,92,92);" class="">=</span><span style="color:rgb(188,143,143);" class="">0</span>;
<span style="color:rgb(160,32,240);" class="">end</span>
<span style="color:rgb(176,24,19);" class="">endfunction</span></pre><div class="">I am getting the following output:</div></div><div class=""><br class=""></div><div class=""><div class="">-->isprime(25411588)</div><div class=""> </div><div class=""> 0. </div><div class=""> ans =</div><div class=""> </div><div class=""> 0. </div></div><div class=""><br class=""></div><div class="">Why am I getting output twice, or in other words how can I suppress the first zero reported in the command window?</div><div class=""><br class=""></div><div class="">Thanks,</div><div class=""><br class=""></div><div class="">Robin</div></body></html>