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Need quick help with C programming language!
25. May 2010 - 9:09
Write in C language term: t= (5x-2y)/7z
Pls guys I need urgent help on this 
25. May 2010 - 9:16
#1
Re: Need quick help with C programming language!
I'm a bit rusty on C but this should work :
float t; t = (float) ( (5.0f*x - 2.0f*y) / 7.0f*z)
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25. May 2010 - 10:14
#3
Re: Need quick help with C programming language!
and make sure that x,y,z are also floats, else do a cast. Also z should never be zero! 
25. May 2010 - 11:08
#4
Re: Need quick help with C programming language!
there's an error: if the divider is 7z (7 multiplied by z), then should be:
t = (float) ( (5.0f*x - 2.0f*y) / (7.0f*z)); - feel the difference
this is because multiplication operators in C (* / %) are executed left-to-right (they have equal rank), so we must enclose last operand (7z) in brackets to force multiplication be calculated before division.
cheers
edit: also, you don't need that float cast - it's done automatically since your var is float. and all the subexpressions are at least float in this case.
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25. May 2010 - 12:43
#5
Re: Need quick help with C programming language!
Yes, the braces are necessary indeed, good finding! The casts aren't explicitly necessary, yes, they are just good practice so you could leave them out! 
25. May 2010 - 19:48
#6
Re: Need quick help with C programming language!
wrote:t = (float) ( (5.0f*x - 2.0f*y) / (7.0f*z));
true, did it fast 
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Check this peacefull place
25. May 2010 - 20:13
#7
Re: Need quick help with C programming language!
KURWA WHY NO JAVA OR PHP OR AS3 ? 
25. May 2010 - 23:37
#8
Re: Need quick help with C programming language!
Thank you all!!!
And epy, next time
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