//copyright paul Lapause novembre 2001
// ACELI 02 23 55 12 00 - contact@aceli.com

//Attenueteur en T
function r1ohmsT(form) {

     form.r1ohms.value = (form.impedance.value)*((Math.pow(10, (form.attenuation.value/20))-1)/(Math.pow(10, (form.attenuation.value/20))+1)) ;
  }
 
function r2ohmsT(form) {
   p=Math.pow(10, (form.attenuation.value/20)) ; 
   form.r2ohms.value = 2*(((form.impedance.value)*p)/((Math.pow(p, 2))-1));
  }
 
//Attenuateur en pi
function r3ohmsT(form) {

     form.r3ohms.value = (form.impedance.value)*((Math.pow(10, (form.attenuation.value/20))+1)/(Math.pow(10, (form.attenuation.value/20))-1)) ;
  }
 
function r4ohmsT(form) {
   p=Math.pow(10, (form.attenuation.value/20)) ; 
   
   form.r4ohms.value = (form.impedance.value)*((Math.pow(p, 2))-1)/(2*p);
  }