Calculatrice "math"

Télécharger le projet
Commenter

Description

calculatrice simple et en plus toute les fonctions maths

Source / Exemple : 


<HTML>
<HEAD>
<TITLE>Calcul Math</TITLE>
<SCRIPT LANGUAGE="JavaScript"><!--
r = new Array(2)
function setStartState(){
 state="start"
 r[0] = "0"
 r[1] = "0"
 operator=""
 ix=0
}
function addDigit(n){
 if(state=="gettingInteger" || state=="gettingFloat")
  r[ix]=appendDigit(r[ix],n)
 else{
  r[ix]=""+n
  state="gettingInteger"
 }
 display(r[ix])
}
function appendDigit(n1,n2){
 if(n1=="0") return ""+n2
 var s=""
 s+=n1
 s+=n2
 return s
}
function display(s){
 document.calculator.total.value=s
}
function addDecimalPoint(){
 if(state!="gettingFloat"){
  decimal=true
  r[ix]+="."
  if(state=="haveOperand" || state=="getOperand2") r[ix]="0."
  state="gettingFloat"
  display(r[ix])
 }
}
function clearDisplay(){
 setStartState()
 display(r[0])
}
function changeSign(){
 if(r[ix].charAt(0)=="-") r[ix]=r[ix].substring(1,r[ix].length)
 else if(parseFloat(r[ix])!=0) r[ix]="-"+r[ix]
 display(r[ix])
}
function setTo(n){
 r[ix]=""+n
 state="haveOperand"
 decimal=false
 display(r[ix])
}
function calc(){
 if(state=="gettingInteger" || state=="gettingFloat" ||
  state=="haveOperand"){
  if(ix==1){
   r[0]=calculateOperation(operator,r[0],r[1])
   ix=0
  }
 }else if(state=="getOperand2"){
  r[0]=calculateOperation(operator,r[0],r[0])
  ix=0
 }
 state="haveOperand"
 decimal=false
 display(r[ix])
}
function calculateOperation(op,x,y){
 var result=""
 if(op=="+"){
  result=""+(parseFloat(x)+parseFloat(y))
 }else if(op=="-"){
  result=""+(parseFloat(x)-parseFloat(y))
 }else if(op=="*"){
  result=""+(parseFloat(x)*parseFloat(y))
 }else if(op=="/"){
  if(parseFloat(y)==0){
   alert("Division by 0 not allowed.")
   result=0
  }else result=""+(parseFloat(x)/parseFloat(y))
 }
 return result
}
function performOp(op){
 if(state=="start"){
  ++ix
  operator=op
 }else if(state=="gettingInteger" || state=="gettingFloat" ||
  state=="haveOperand"){
  if(ix==0){
   ++ix
   operator=op
  }else{
   r[0]=calculateOperation(operator,r[0],r[1])
   display(r[0])
   operator=op
  }
 }
 state="getOperand2"
 decimal=false
}
function applyFunction(){
 var selectionList=document.calculator.functions
 var selIX=selectionList.selectedIndex
 var sel=selectionList.options[selIX].value
 if(sel=="abs") r[ix]=Math.abs(r[ix])
 else if(sel=="acos") r[ix]=Math.acos(r[ix])
 else if(sel=="asin") r[ix]=Math.asin(r[ix])
 else if(sel=="atan") r[ix]=Math.atan(r[ix])
 else if(sel=="ceil") r[ix]=Math.ceil(r[ix])
 else if(sel=="cos") r[ix]=Math.cos(r[ix])
 else if(sel=="exp") r[ix]=Math.exp(r[ix])
 else if(sel=="floor") r[ix]=Math.floor(r[ix])
 else if(sel=="log") r[ix]=Math.log(r[ix])
 else if(sel=="sin") r[ix]=Math.sin(r[ix])
 else if(sel=="sqrt") r[ix]=Math.sqrt(r[ix])
 else r[ix]=Math.tan(r[ix])
 decimal=false
 display(r[ix])
}
// --></SCRIPT>
</HEAD>
<BODY>
<SCRIPT LANGUAGE="JavaScript"><!--
setStartState()
// --></SCRIPT>
<H1>Doing Math</H1>
<FORM NAME="calculator">
<TABLE BORDER="BORDER" ALIGN="CENTER">
<TR>
<TD COLSPAN="6"><INPUT TYPE="TEXT" NAME="total" VALUE="0"
 SIZE="44"></TD></TR>
<TR>
<TD><INPUT TYPE="BUTTON" NAME="n0" VALUE="   0   "
 ONCLICK="addDigit(0)"></TD>
<TD><INPUT TYPE="BUTTON" NAME="n1" VALUE="   1   "
 ONCLICK="addDigit(1)"></TD>
<TD><INPUT TYPE="BUTTON" NAME="n2" VALUE="   2   "
 ONCLICK="addDigit(2)"></TD>
<TD><INPUT TYPE="BUTTON" NAME="equals" VALUE="  =   "
 ONCLICK="calc()"></TD>
<TD ROWSPAN="1"><INPUT
TYPE="BUTTON" NAME="clearField" VALUE="    Clear   "
 ONCLICK="clearDisplay()"></TD>
<TD COLSPAN="1"><INPUT
TYPE="BUTTON" NAME="ln2" VALUE="      ln2       "
 ONCLICK="setTo(Math.LN2)"></TD></TR>
<TR>
<TD><INPUT TYPE="BUTTON" NAME="n3" VALUE="   3   "
 ONCLICK="addDigit(3)"></TD>
<TD><INPUT TYPE="BUTTON" NAME="n4" VALUE="   4   "
 ONCLICK="addDigit(4)"></TD>
<TD><INPUT TYPE="BUTTON" NAME="n5" VALUE="   5   "
 ONCLICK="addDigit(5)"></TD>
<TD COLSPAN="1" ROWSPAN="1"><INPUT TYPE="BUTTON"
 NAME="sign" VALUE=" +/- " ONCLICK="changeSign()"></TD>
<TD ROWSPAN="1"><INPUT TYPE="BUTTON" NAME="sqrt2"
 VALUE="  sqrt(2)   " ONCLICK="setTo(Math.SQRT2)"></TD>
<TD COLSPAN="1" ROWSPAN="1"><INPUT TYPE="BUTTON" NAME="ln10"
 VALUE="     ln10     " ONCLICK="setTo(Math.LN10)"></TD></TR>
<TR>
<TD><INPUT TYPE="BUTTON" NAME="n6" VALUE="   6   "
 ONCLICK="addDigit(6)"></TD>
<TD><INPUT TYPE="BUTTON" NAME="n7" VALUE="   7   "
 ONCLICK="addDigit(7)"></TD>
<TD><INPUT TYPE="BUTTON" NAME="n8" VALUE="   8   "
 ONCLICK="addDigit(8)"></TD>
<TD COLSPAN="1" ROWSPAN="1"><INPUT
TYPE="BUTTON" NAME="pi" VALUE=" pi  "
 ONCLICK="setTo(Math.PI)"></TD>
<TD COLSPAN="1" ROWSPAN="1"><INPUT
TYPE="BUTTON" NAME="sqrt12" VALUE="sqrt(1/2) "
 ONCLICK="setTo(Math.SQRT1_2)"></TD>
<TD COLSPAN="1" ROWSPAN="1"><INPUT
TYPE="BUTTON" NAME="log2e" VALUE="  log2(e)  "
 ONCLICK="setTo(Math.LOG2E)"></TD></TR>
<TR>
<TD><INPUT TYPE="BUTTON" NAME="n9" VALUE="   9   "
 ONCLICK="addDigit(9)"></TD>
<TD><INPUT TYPE="BUTTON" NAME="decimal" VALUE="   .    "
 ONCLICK="addDecimalPoint()"></TD>
<TD><INPUT TYPE="BUTTON" NAME="plus" VALUE="   +   "
 ONCLICK="performOp('+')"></TD>
<TD COLSPAN="1" ROWSPAN="1"><INPUT TYPE="BUTTON" NAME="e"
 VALUE=" e   " ONCLICK="setTo(Math.E)"></TD>
<TD COLSPAN="1" ROWSPAN="1"><INPUT TYPE="BUTTON"
 NAME="random" VALUE="Random"
 ONCLICK="setTo(Math.random())"></TD>
<TD COLSPAN="1" ROWSPAN="1"><INPUT TYPE="BUTTON" NAME="log10e"
 VALUE="log10(e)  " ONCLICK="setTo(Math.LOG10E)"></TD></TR>
<TR>
<TD><INPUT TYPE="BUTTON" NAME="minus" VALUE="   -    "
 ONCLICK="performOp('-')"></TD>
<TD><INPUT TYPE="BUTTON" NAME="multiply" VALUE="    X  "
 ONCLICK="performOp('*')"></TD>
<TD><INPUT TYPE="BUTTON" NAME="divide" VALUE="    /   "
 ONCLICK="performOp('/')"></TD>
<TD COLSPAN="3" ROWSPAN="1"><B>Functions: </B>
<SELECT NAME="functions" SIZE="1">
<OPTION VALUE="abs" SELECTED="SELECTED">abs(x)</OPTION>
<OPTION VALUE="acos">acos(x)</OPTION>
<OPTION VALUE="asin">asin(x)</OPTION>
<OPTION VALUE="atan">atan(x)</OPTION>
<OPTION VALUE="ceil">ceil(x)</OPTION>
<OPTION VALUE="cos">cos(x)</OPTION>
<OPTION VALUE="exp">exp(x)</OPTION>
<OPTION VALUE="floor">floor(x)</OPTION>
<OPTION VALUE="log">log(x)</OPTION>
<OPTION VALUE="sin">sin(x)</OPTION>
<OPTION VALUE="sqrt">sqrt(x)</OPTION>
<OPTION VALUE="tan">tan(x)</OPTION>
</SELECT>
<INPUT TYPE="BUTTON" NAME="apply" VALUE="Apply"
 onClick="applyFunction()"></TD></TR>
</TABLE>
</FORM>
</BODY>
</HTML>

Conclusion :


Essayer et donner moi des news si vous avez un mac utiliser safari le new navigateur sous mac os X le graphisme est exellent
Télécharger le projet

Codes Sources

A voir également

S'inscrire maintenant

Vous n'êtes pas encore membre ?

inscrivez-vous, c'est gratuit et ça prend moins d'une minute !

Les membres obtiennent plus de réponses que les utilisateurs anonymes.

Le fait d'être membre vous permet d'avoir un suivi détaillé de vos demandes et codes sources.

Le fait d'être membre vous permet d'avoir des options supplémentaires.

Du même auteur (zeus19)