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Question... 
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sophiesk101
Rookie

Joined: Thu Apr 11, 2013 6:11 pm
Posts: 2
Post Question...
Is it possible to make the robot round up?? Or does RobotC always round down with a number? Such as 2.777778 comes up as 2.00000.
Thu Apr 11, 2013 6:18 pm
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Coder A
Expert

Joined: Thu Jan 03, 2013 5:10 pm
Posts: 186
Location: The plateau north of the Ohio River Valley, also known as Cave Country.
Post Re: Question...
Of course. You will have to make your own function, though. Here's one:

Code:
int roundup(float numtoround)
{
  if(numtoround==round(numtoround))
    numtoround--;
  numtoround++;
  return numtoround;
}


Does that help?

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Last edited by Coder A on Thu Apr 11, 2013 8:12 pm, edited 1 time in total.
Thu Apr 11, 2013 6:43 pm
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sophiesk101
Rookie

Joined: Thu Apr 11, 2013 6:11 pm
Posts: 2
Post Re: Question...
Coder A wrote:
Of course. You will have to make your own function, though. Here's one:

Code:
int roundup(float numtoround)
{
  if(numtoround==round(numtoround))
    numtoround--;
  numtoround++;
}


Does that help?


Yes it does! Thanks! (:
Thu Apr 11, 2013 6:50 pm
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Coder A
Expert

Joined: Thu Jan 03, 2013 5:10 pm
Posts: 186
Location: The plateau north of the Ohio River Valley, also known as Cave Country.
Post Re: Question...
Good! I'm glad I could help.

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I am not a robot! I am a unicorn! ~ quote from a robot
Play chess for free!
Thu Apr 11, 2013 8:11 pm
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RoboDesigners
Novice
User avatar

Joined: Sat Jul 10, 2010 3:06 pm
Posts: 86
Location: Roanoke, VA
Post Re: Question...
If you want an approach to round based on typical rules (e.g. 9.6 rounds up, 5.3 rounds down, 5.5 rounds up), you can try:

Code:
int round(float numToRound) {
  return (int) (numToRound + 0.5);
}

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Thu Apr 11, 2013 11:30 pm
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mightor
Moderator
Moderator
User avatar

Joined: Wed Mar 05, 2008 8:14 am
Posts: 3105
Location: Rotterdam, The Netherlands
Post Re: Question...
Or.... you can just use the round() function in ROBOTC :)
Attachment:
2013-04-12_06-51-36.png
2013-04-12_06-51-36.png [ 4.56 KiB | Viewed 1384 times ]

Code:
float meh = 2.56;
int foo = round(meh);

= Xander

_________________
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| (Title bestowed upon on the 8th day of November, 2013)
| My Blog: I'd Rather Be Building Robots
| ROBOTC 3rd Party Driver Suite: [Project Page]
Fri Apr 12, 2013 12:53 am
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NeXT-Generation
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Joined: Wed Sep 28, 2011 10:13 pm
Posts: 630
Location: If I told you, I'd have to kill you.
Post Re: Question...
Are we all understanding this question correctly? You want something that will always round up, or round up/down based on whether it's greater or less than x.5? I'm somewhat confused by all the different answers.

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Fri Apr 12, 2013 10:34 am
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mightor
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User avatar

Joined: Wed Mar 05, 2008 8:14 am
Posts: 3105
Location: Rotterdam, The Netherlands
Post Re: Question...
If you want to round up, use ceil(), otherwise use floor(), if you want to round off, like most humans do, use round().

= Xander

_________________
| Professional Conduit of Reasonableness
| (Title bestowed upon on the 8th day of November, 2013)
| My Blog: I'd Rather Be Building Robots
| ROBOTC 3rd Party Driver Suite: [Project Page]
Fri Apr 12, 2013 10:44 am
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