function add(a, b) { var c, d, e; try { c = a.toString().split(".")[1].length; } catch (f) { c = 0; } try { d = b.toString().split(".")[1].length; } catch (f) { d = 0; } return e = Math.pow(10, Math.max(c, d)), (mul(a, e) + mul(b, e)) / e; } function sub(a, b) { var c, d, e; try { c = a.toString().split(".")[1].length; } catch (f) { c = 0; } try { d = b.toString().split(".")[1].length; } catch (f) { d = 0; } return e = Math.pow(10, Math.max(c, d)), (mul(a, e) - mul(b, e)) / e; } function mul(a, b) { var c = 0, d = a.toString(), e = b.toString(); try { c += d.split(".")[1].length; } catch (f) {} try { c += e.split(".")[1].length; } catch (f) {} return Number(d.replace(".", "")) * Number(e.replace(".", "")) / Math.pow(10, c); } function div(a, b) { var c, d, e = 0, f = 0; try { e = a.toString().split(".")[1].length; } catch (g) {} try { f = b.toString().split(".")[1].length; } catch (g) {} return c = Number(a.toString().replace(".", "")), d = Number(b.toString().replace(".", "")), mul(c / d, Math.pow(10, f - e)); }