写一个声明，看到变量接近C中的保存值

Question

我想问一下如何查看读取的值是否接近常量中保存的值。是否有具体说明或有任何方法可以做到这一点 等待你的回复。

问候
Salik Sadruddin Merani

示例：

//Here is what I mean
if ( a is near to b){
then do this
}

Answer 1

if( ( a>(b*0.98) ) && ( a<(b*1.02) ) )
{
    //we have %2 error tolerance here. Bee careful! Dont pass the tol. level.
    //do your work yourself, if you cant find, then ask us. Dont forget
    //to google
 }


if( abs(a-b)<(b*0.02) )
 {

  }

if ( abs((a-b)(a+b))<0.07 )
  {


   }


if(check(a,b))
{

}


if( pre_calculated )
{

 }