function calcar(){
    var form = document.form1;
   
    var f = form.factor.value;
    
    var e = form.energy.value;
	
	var t = form.temperature.value;
    
    var Precision=5;
	
	var r1 = (-e) / (0.008314  * t);
	
	var result = f * Math.exp(r1);
	
    form.result.value =result.toPrecision(Precision);
    
 return true;
}