i dont know how to use floor,in my programme: int k; int z; float x; int y=13; void setup() { pinMode(13,OUTPUT); pinMode(10,OUTPUT); } void loop(){ x=(y-7)/4; if (x==floor(x)) k=1; else k=2; if (k==1) digitalWrite(13,HIGH); else digitalWrite(10,HIGH); but when i use it on isis pr…

Please use code tags. Read this before posting a programming question Please edit your post, select the code, and put it between [code] ... [/code] tags. You can do that by hitting the "Code" icon above the posting area. It is the first icon, with the symbol: </>

You're getting integer-math'ed. The intermediate values aren't floats, so the part after the decimal is being dropped. x=(y-7.0)/4; will produce different behavior (probably the behavior you're expecting). As it is, it's not turned into a float until the math is done - as integers.

in my programm, i want to know if the result of a function is an integer or no! [int k,y float x; void setup() { pinMode(13,OUTPUT); pinMode(10,OUTPUT);} void loop(){ x=(y-7)/4; if (x==floor(x)) k=1;//k=1 so x in an integer else k=2;//k=2 so x is a float] the result found every time is x i…

That code does not compile. Please use code tags when posting code.

int k,y float x; void setup() { pinMode(13,OUTPUT); pinMode(10,OUTPUT);} void loop(){ x=(y-7)/4; if (x==floor(x)) k=1;//k=1 so x in an integer else k=2;//k=2 so x is a float

That code still does not compile.

i dont know what to do, its working in my computer, but it dosnt give a right result

The code you posted above is not working on any computer, because it is incomplete and does not compile Please, just cut the code from the IDE and post it here in code tags.

int k,y=13; float x; void setup() { pinMode(13,OUTPUT); pinMode(10,OUTPUT); } void loop(){ x=(y-7)/4; if (x==floor(x)) k=1; else k=2; if (k==1) digitalWrite(13,HIGH); else digitalWrite(10,HIGH); }

how to use floor

Projects Programming

system September 3, 2015, 8:47pm 2

 x=(y-7)/4;

13 - 7 = 6
6 / 4 = 1

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how to use floor

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