1<?xml version="1.0" encoding="UTF-8"?> 2 3<!--*********************************************************** 4 * 5 * Licensed to the Apache Software Foundation (ASF) under one 6 * or more contributor license agreements. See the NOTICE file 7 * distributed with this work for additional information 8 * regarding copyright ownership. The ASF licenses this file 9 * to you under the Apache License, Version 2.0 (the 10 * "License"); you may not use this file except in compliance 11 * with the License. You may obtain a copy of the License at 12 * 13 * http://www.apache.org/licenses/LICENSE-2.0 14 * 15 * Unless required by applicable law or agreed to in writing, 16 * software distributed under the License is distributed on an 17 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 18 * KIND, either express or implied. See the License for the 19 * specific language governing permissions and limitations 20 * under the License. 21 * 22 ***********************************************************--> 23 24<helpdocument version="1.0"> 25<meta> 26<topic id="textsbasicshared03080201xml" indexer="include" status="PUBLISH"> 27<title id="tit" xml-lang="en-US">Exp Function [Runtime]</title> 28<filename>/text/sbasic/shared/03080201.xhp</filename> 29</topic> 30</meta> 31<body> 32<section id="exp"> 33<bookmark xml-lang="en-US" branch="index" id="bm_id3150616"> 34<bookmark_value>Exp function</bookmark_value> 35</bookmark> 36<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> 37<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> 38</section> 39<paragraph role="heading" id="hd_id3150984" xml-lang="en-US" level="2" l10n="U" oldref="3">Syntax:</paragraph> 40<paragraph role="paragraph" id="par_id3145315" xml-lang="en-US" l10n="U" oldref="4">Exp (Number)</paragraph> 41<paragraph role="heading" id="hd_id3154347" xml-lang="en-US" level="2" l10n="U" oldref="5">Return value:</paragraph> 42<paragraph role="paragraph" id="par_id3149670" xml-lang="en-US" l10n="U" oldref="6">Double</paragraph> 43<paragraph role="heading" id="hd_id3154760" xml-lang="en-US" level="2" l10n="U" oldref="7">Parameters:</paragraph> 44<paragraph role="paragraph" id="par_id3150793" xml-lang="en-US" l10n="U" oldref="8"> 45<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> 46<embed href="text/sbasic/shared/00000003.xhp#errorcode"/> 47<embed href="text/sbasic/shared/00000003.xhp#err5"/> 48<paragraph role="heading" id="hd_id3156280" xml-lang="en-US" level="2" l10n="U" oldref="9">Example:</paragraph> 49<paragraph role="paragraph" id="par_id3153193" xml-lang="en-US" l10n="U" oldref="10">Sub ExampleLogExp</paragraph> 50<paragraph role="paragraph" id="par_id3125864" xml-lang="en-US" l10n="U" oldref="11">Dim dValue as Double</paragraph> 51<paragraph role="paragraph" id="par_id3145172" xml-lang="en-US" l10n="U" oldref="12">const b1=12.345e12</paragraph> 52<paragraph role="paragraph" id="par_id3159254" xml-lang="en-US" l10n="U" oldref="13">const b2=1.345e34</paragraph> 53<paragraph role="paragraph" id="par_id3147287" xml-lang="en-US" l10n="U" oldref="14">dValue=Exp( Log(b1)+Log(b2) )</paragraph> 54<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> 55<paragraph role="paragraph" id="par_id3151112" xml-lang="en-US" l10n="U" oldref="16">end sub</paragraph> 56</body> 57</helpdocument> 58