-20 -4
-10 14
0 32
10 50
20 68
30 86
40 104
array(7) { [0]=> int(-20) [1]=> int(-10) [2]=> int(0) [3]=> int(10) [4]=> int(20) [5]=> int(30) [6]=> int(40) }
array(7) { [0]=> float(-4) [1]=> float(14) [2]=> float(32) [3]=> float(50) [4]=> float(68) [5]=> float(86) [6]=> float(104) }
Array ( [0] => -20 [1] => -10 [2] => 0 [3] => 10 [4] => 20 [5] => 30 [6] => 40 )
Array ( [0] => -4 [1] => 14 [2] => 32 [3] => 50 [4] => 68 [5] => 86 [6] => 104 )