function calcDeg(){
var pitch=document.boxes.qRP.value;
side1= eval(document.boxes.qRP.value);
s1sq = eval(side1*side1);
side2 = 12;
s2sq=(side2*side2);
angle1=0;
angle1=Math.atan(side1/side2);
angle1=angle1*(360/(2*Math.PI));
document.boxes.inputP1.value=pitch;
document.boxes.degree.value=angle1;
//document.boxes.degree.value=Math.round(angle1*100000)/100000;  //rounds number to 5th decimal place
}

function calcShort(){
var thetaS=document.boxes.degree.value;
var thetaS=(thetaS*Math.PI)/180;
sn=Math.sin(thetaS);cs=Math.cos(thetaS);tn=Math.tan(thetaS);
var knownS=document.boxes.qED.value;
var ans1S=(knownS*tn);
document.boxes.sA.value=document.boxes.qCD.value;
document.boxes.sB.value=document.boxes.qSL.value;
document.boxes.sRJ.value=Math.round(ans1S*100000)/100000+Math.round(document.boxes.sB.value*100000)/100000;
}

function calcX(){
var theta=document.boxes.degree.value;
var theta=(theta*Math.PI)/180;
sn=Math.sin(theta);cs=Math.cos(theta);tn=Math.tan(theta);
var known=document.boxes.qCD.value;
var ans1=(known*tn);
document.boxes.sX.value=Math.round(ans1*100000)/100000+Math.round(document.boxes.qSL.value*100000)/100000;
}

function calcRJL(){
var thetaL=document.boxes.degree.value;
var thetaL=(thetaL*Math.PI)/180;
sn=Math.sin(thetaL);cs=Math.cos(thetaL);tn=Math.tan(thetaL);
var knownL=document.boxes.qDO.value;
var ans1L=(knownL*tn);
document.boxes.sRJL.value=Math.round(ans1L*100000)/100000+Math.round(document.boxes.sRJ.value*100000)/100000;
}