Analysing an excel code

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Hello all,

I have a code in excel, which I need to convert into c++. I cant understand the looping. If anybody can help, that would b great!

=IF((C6-A6)>0, IF((D6-B6)>0,ATAN((C6-A6)/(D6-B6))*180/PI(),180+ATAN((C6-A6)/(D6-B6))*180/PI()),IF((D6-B6)>0,360+ATAN((C6-A6)/(D6-B6))*180/PI(),180+ATAN((C6-A6)/(D6-B6))*180/PI()))

for ease of understanding I have split these into lines :
=IF((C6-A6)>0, 
IF((D6-B6)>0,
ATAN((C6-A6)/(D6-B6))*180/PI(),
180+ATAN((C6-A6)/(D6-B6))*180/PI()),
IF((D6-B6)>0,
360+ATAN((C6-A6)/(D6-B6))*180/PI(),
180+ATAN((C6-A6)/(D6-B6))*180/PI()))

I don't understand why is there two "If" statements...

Posted 26-Apr-12 1:12am

Sumal.V

Updated 26-Apr-12 1:16am

v2

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Schehaider_Aymen · Answer 1 · 2012-04-26T01:28:00

Solution 1

as i could figure out from those lines : the IF works like this

IF(Condition True, Do/Evaluate this, Else Do/Evaluate this).

and for the Double IF:

If (Condition 1 is true,
the expression to evaluate is the seond one beginning by another IF ....)

it is like

C++

if( Cond1 ....)
  if( Cond2 ....)

Posted 26-Apr-12 1:28am

Schehaider_Aymen

Comments

Sumal.V 26-Apr-12 7:32am

But out of the 3 if statements, the 2nd and the third are same.... I don't get the point.

Schehaider_Aymen 26-Apr-12 7:53am

The conditions of the sencond and the third "if" are the same but they differ with their instructions besides the body of the second if executed only if the first condition (C6-A6)>0 is verified.

So it will look like this

<pre lang="c++">
if((C6-A6)>0)
{
if((D6-B6)>0)
//[Bloc 1 ]ATAN((C6-A6)/(D6-B6))*180/PI()
else
//[Bloc 2 ]180+ATAN((C6-A6)/(D6-B6))*180/PI())
}
else
{
if((D6-B6)>0)
//[Bloc 3 ]360+ATAN((C6-A6)/(D6-B6))*180/PI()
else
//[Bloc 2 ]180+ATAN((C6-A6)/(D6-B6))*180/PI()
}
</pre>

Sumal.V 26-Apr-12 8:12am

Oh okay, cheers