1<?xml version="1.0" encoding="UTF-8"?> 2 3 4<!--*********************************************************** 5 * 6 * Licensed to the Apache Software Foundation (ASF) under one 7 * or more contributor license agreements. See the NOTICE file 8 * distributed with this work for additional information 9 * regarding copyright ownership. The ASF licenses this file 10 * to you under the Apache License, Version 2.0 (the 11 * "License"); you may not use this file except in compliance 12 * with the License. You may obtain a copy of the License at 13 * 14 * http://www.apache.org/licenses/LICENSE-2.0 15 * 16 * Unless required by applicable law or agreed to in writing, 17 * software distributed under the License is distributed on an 18 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 19 * KIND, either express or implied. See the License for the 20 * specific language governing permissions and limitations 21 * under the License. 22 * 23 ***********************************************************--> 24 25 26 27<helpdocument version="1.0"> 28<meta> 29<topic id="textsbasicshared03080201xml" indexer="include" status="PUBLISH"> 30<title id="tit" xml-lang="en-US">Exp Function [Runtime]</title> 31<filename>/text/sbasic/shared/03080201.xhp</filename> 32</topic> 33<history> 34<created date="2003-10-31T00:00:00">Sun Microsystems, Inc.</created> 35<lastedited date="2005-04-14T10:35:23">converted from old format - fpe</lastedited> 36</history> 37</meta> 38<body> 39<section id="exp"> 40<bookmark xml-lang="en-US" branch="index" id="bm_id3150616"><bookmark_value>Exp function</bookmark_value> 41</bookmark> 42<paragraph role="heading" id="hd_id3150616" xml-lang="en-US" level="1" l10n="U" oldref="1"><link href="text/sbasic/shared/03080201.xhp" name="Exp Function [Runtime]">Exp Function [Runtime]</link></paragraph> 43<paragraph role="paragraph" id="par_id3155555" xml-lang="en-US" l10n="U" oldref="2">Returns the base of the natural logarithm (e = 2.718282) raised to a power.</paragraph> 44</section> 45<paragraph role="heading" id="hd_id3150984" xml-lang="en-US" level="2" l10n="U" oldref="3">Syntax:</paragraph> 46<paragraph role="paragraph" id="par_id3145315" xml-lang="en-US" l10n="U" oldref="4">Exp (Number)</paragraph> 47<paragraph role="heading" id="hd_id3154347" xml-lang="en-US" level="2" l10n="U" oldref="5">Return value:</paragraph> 48<paragraph role="paragraph" id="par_id3149670" xml-lang="en-US" l10n="U" oldref="6">Double</paragraph> 49<paragraph role="heading" id="hd_id3154760" xml-lang="en-US" level="2" l10n="U" oldref="7">Parameters:</paragraph> 50<paragraph role="paragraph" id="par_id3150793" xml-lang="en-US" l10n="U" oldref="8"> 51<emph>Number:</emph> Any numeric expression that specifies the power that you want to raise "e" to (the base of natural logarithms). The power must be for both single-precision numbers less than or equal to 88.02969 and double-precision numbers less than or equal to 709.782712893, since $[officename] Basic returns an Overflow error for numbers exceeding these values.</paragraph> 52<embed href="text/sbasic/shared/00000003.xhp#errorcode"/> 53<embed href="text/sbasic/shared/00000003.xhp#err5"/> 54<paragraph role="heading" id="hd_id3156280" xml-lang="en-US" level="2" l10n="U" oldref="9">Example:</paragraph> 55<paragraph role="paragraph" id="par_id3153193" xml-lang="en-US" l10n="U" oldref="10">Sub ExampleLogExp</paragraph> 56<paragraph role="paragraph" id="par_id3125864" xml-lang="en-US" l10n="U" oldref="11">Dim dValue as Double</paragraph> 57<paragraph role="paragraph" id="par_id3145172" xml-lang="en-US" l10n="U" oldref="12">const b1=12.345e12</paragraph> 58<paragraph role="paragraph" id="par_id3159254" xml-lang="en-US" l10n="U" oldref="13">const b2=1.345e34</paragraph> 59<paragraph role="paragraph" id="par_id3147287" xml-lang="en-US" l10n="U" oldref="14">dValue=Exp( Log(b1)+Log(b2) )</paragraph> 60<paragraph role="paragraph" id="par_id3161832" xml-lang="en-US" l10n="U" oldref="15">MsgBox "" & dValue & chr(13) & (b1*b2) ,0,"Multiplication by logarithm"</paragraph> 61<paragraph role="paragraph" id="par_id3151112" xml-lang="en-US" l10n="U" oldref="16">end sub</paragraph> 62</body> 63</helpdocument> 64