function multiply(){ a=eval(document.calculator.wingarea.value); b=eval(document.calculator.weight.value); c=(a/144); d=b/c; f=1.5 g=Math.pow(c,f); h=b/g; i=Math.round(d*100)/100; j=Math.round(h*10)/10; document.calculator.wingloading.value=i; document.calculator.cube.value=j; } Wing Area: sq.in. Weight: oz. Wing Loading: os./sq.ft. Wing Cube Loading: