відповідь: function showresult(choise){
var n1=parsefloat(document.getelementbyid('num1').value);
var n2=parsefloat(document.getelementbyid('num2').value);
var r;
var c=choise;
switch(c)
{
case '1':
r=n1+n2;
break;
case '2':
r=n1-n2;
break;
case '3':
r=n1*n2;
break;
case '4':
r=n1/n2;
break;
case '5':
r=n2*100/n1;
break;
default:
break;
}
document.getelementbyid('result').value=r;
}
calculator
my calculator first number second number result+
-
*
/
%
пояснення:
101101 = 1∙2^5 + 0∙2^4 + 1∙2^3 + 1∙2^2 + 0∙2^1 + 1∙2^0 = 45:16=2D(16с.сч.)
101011011 = 1∙2^8 + 0∙2^7 + 1∙2^6 + 0∙2^5 + 1∙2^4 + 1∙2^3 + 0∙2^2 + 1∙2^1 + 1∙2^0 = 347:8:8=533(8с.сч.)
101011011 = 1∙2^8 + 0∙2^7 + 1∙2^6 + 0∙2^5 + 1∙2^4 + 1∙2^3 + 0∙2^2 + 1∙2^1 + 1∙2^0 = 347:16:16=15B(16с.сч.)
11110111011 = 1∙2^10 + 1∙2^9 + 1∙2^8 + 1∙2^7 + 0∙2^6 + 1∙2^5 + 1∙2^4 + 1∙2^3 + 0∙2^2 + 1∙2^1 + 1∙2^0 = 1979:8:8:8=3673(8с.сч)
11110111011 = 1∙2^10 + 1∙2^9 + 1∙2^8 + 1∙2^7 + 0∙2^6 + 1∙2^5 + 1∙2^4 + 1∙2^3 + 0∙2^2 + 1∙2^1 + 1∙2^0 = 1979:16:16=7BB(16с.сч.)
100000001110 = 1∙2^11 + 0∙2^10 + 0∙2^9 + 0∙2^8 + 0∙2^7 + 0∙2^6 + 0∙2^5 + 0∙2^4 + 1∙2^3 + 1∙2^2 + 1∙2^1 + 0∙2^0 = 2062:8:8:8=4016(8с.сч.)
100000001110 = 1∙2^11 + 0∙2^10 + 0∙2^9 + 0∙2^8 + 0∙2^7 + 0∙2^6 + 0∙2^5 + 0∙2^4 + 1∙2^3 + 1∙2^2 + 1∙2^1 + 0∙2^0 = 2062:16:16=80Е(16с.сч.)