Simple yet complicated mathematics

[PHPNewbie1234]

$temp is currently 6. But the variable result can be changing every time to a different number so it is not a fixed value.

 

Anyway, for this $temp * 1.1666666, the result will be 6.99999996. Since I used the floor function, it will be rounded down to 6.

 

Is there any way when the value is more then>*.49999 it will stay at *.5 instead of *?

 

Example: 6.51111111, 6.78948123, 6.9747124

 

Expected Output: 6.5

 

Example: 6.49999999, 6.12412431, 6.33452361

 

Expected Output: 6

 

Do note that, $temp value will be ever changing..thank you!

 

[smerny]

floor(2 * $temp) / 2

 

example:

6.6 * 2 = 13.2

floor(13.2) = 13

13/2 = 6.5

 

6.4 * 2 = 12.8

floor(12.8 ) = 12

12/2 = 6

 

edited...

[PHPNewbie1234]

Doesnt work. What happens if the value is 6.87236235(random value)

 

Expected Output: 6.5

 

6.87236235 * 2 = 13.7447247

13.7447247 + 0.5 = 14.2447247

floor(14.2447247) = 14

14/2 = 7.

 

Not expected output.

 

[smerny]

yea initially i was doing nearest half rather than floored half, edited post...

 

fringe test:

6.9999999 * 2 = 13.999998

13.99998 floored = 13

13/2 = 6.5

 

6*2 = 12

12 floored = 12

12/2 = 6

 

6.4999 * 2 = 12.99998

floored = 12

12/2 = 6

 

6.5 * 2 = 13

floored = 13

13/2 = 6.5

[PHPNewbie1234]

Thank you! That was indeed what i was looking for