how can u write the specific statement for double varibles

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Actually i have two double varibles like as

C#

double ds,ds1;

ds,ds1 stores the values

based on the requirement i mentioned like as

C#

if(ds.Equals(ds1))
{


}

after that my requirement little bit change i.e ds1 is grater than equal to ds

how can u write the this statement. Actually i write equal to ds,ds1

please help me.

thank u.

Posted 23-Jun-15 3:08am

Krishna Veni

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F-ES Sitecore · Answer 1 · 2015-06-23T03:35:00

Solution 2

C#

if (ds1 >= ds)
{

}

You should go through a book on learning .net basics as a forum isn't the best place to learn how to code from scratch, we can't be answering every little question you have.

Posted 23-Jun-15 3:35am

F-ES Sitecore

Sergey Alexandrovich Kryukov · Answer 2 · 2015-06-23T04:01:00

First of all, use operators, not System.Object.Equal:

C#

if (ds > ds1) //
if (ds >= ds1) //
if (ds == ds1) // if this is C# :-)

But be very careful with ==. In most calculations, you should not use this operator. You need to understand that the floating-point types can only provide approximate representation of mathematical real numbers. The equality should only be considered with certain accuracy. For example, you may need to check up if two values are "close enough":

C#

if (System.Abs(ds - ds1) < delta) //
// where delta is some absolute accuracy

In other cases, you need to operate with relative accuracy.

—SA

Lakhan Anjana · Answer 3 · 2015-06-23T03:29:00

Solution 1

Demystify C# floating-point equality and relation operations[^]

Posted 23-Jun-15 3:29am

Lakhan Anjana

Comments

Sergey Alexandrovich Kryukov 23-Jun-15 10:06am

I up-voted the answer; this is a good reference, but I think just a few words explaining how it is related to the inquire's "code" and what are the inquire's problems would be needed. I tried to explain it in Solution 3, please see.
—SA