Trig Calculator Help

Question

I want a user to be able to chose the function, and the units. I also want the code to run until it is given a viable answer. I cannot get it to work, and I do not really know what I am doing. I like variables, but functions are confusing, but I think I need to use them here.

Here is the code:

function X {
var y = prompt("input "1" for sine, "2" for cosine, and "3" for tangent");
switch (y):
case 1:
var g = prompt();
var h = g*(Math.PI/180);
var m = Math.sin(h);
var n = m*(180/Math.PI);
document.write(n);
break;
case 2:
var i = prompt();
var j = i*(Math.PI/180);
var o = Math.cos(j);
var p = o*(180/Math.PI);
document.write(p);
break;
case 3:
var k = prompt();
var l = k*Math.PI/180;
var q = Math.tan(l);
var r = q*(180/Math.PI);
document.write(r);
break;
default:
alert("try again");
return(X)
break;
}
function Y {
var x = prompt("input "1" for sine, "2" for cosine, and "3" for tangent");
switch (x):
case 1:
var d = prompt("input radians, in fraction form. all input will be multiplied by PI/1");
document.write(Math.sin((d)*(Math.PI/1)));
break;
case 2:
var e = prompt("input radians, in fraction form. all input will be multiplied by PI/1");
document.write(Math.cos((e)*(Math.PI/1)));
break;
case 3:
var f = prompt("input radians, in fraction form. all input will be multiplied by PI/1");
document.write(Math.tan((f)*(Math.PI/1)));
break;
default:
alert("try again");
return(Y)
break;
}
do{
var a = prompt("input "0" for degrees, and "1" for radians");
if(a==0) {
return(X)
}
else if(a==1) {
return(Y)
else{
alert("please input a "0" or a "1"");
;
}
} while(a=!0,1)

Answer 1

Please post your code in Code Playground and then link it here.