var RoundAwayFromZero = require('../../math/RoundAwayFromZero'); 
var NumberArrayStep = function (start, end, step){ 
if (start === undefined) { 
start = 0; 
} 
if (end === undefined) { 
end = null ; 
} 
if (step === undefined) { 
step = 1; 
} 
if (end === null ) { 
end = start; 
start = 0; 
} 
var result = [] ; 
var total = Math.max(RoundAwayFromZero((end - start) / (step || 1)), 0); 
for (var i = 0; 
i < total; i++ ){ 
result.push(start); 
start += step; 
} 
return result; 
} 
; 
module.exports = NumberArrayStep;