Why are there newline characters every thousand characters

Why every thousand characters MATLAB automatically adds a newline character?

Example:

poly2sym(1:110)

will give me this output

ans =

x^109 + 2*x^108 + 3*x^107 + 4*x^106 + 5*x^105 + 6*x^104 + 7*x^103 + 8*x^102 + 9*x^101 + 10*x^100 + 11*x^99 + 12*x^98 + 13*x^97 + 14*x^96 + 15*x^95 + 16*x^94 + 17*x^93 + 18*x^92 + 19*x^91 + 20*x^90 + 21*x^89 + 22*x^88 + 23*x^87 + 24*x^86 + 25*x^85 + 26*x^84 + 27*x^83 + 28*x^82 + 29*x^81 + 30*x^80 + 31*x^79 + 32*x^78 + 33*x^77 + 34*x^76 + 35*x^75 + 36*x^74 + 37*x^73 + 38*x^72 + 39*x^71 + 40*x^70 + 41*x^69 + 42*x^68 + 43*x^67 + 44*x^66 + 45*x^65 + 46*x^64 + 47*x^63 + 48*x^62 + 49*x^61 + 50*x^60 + 51*x^59 + 52*x^58 + 53*x^57 + 54*x^56 + 55*x^55 + 56*x^54 + 57*x^53 + 58*x^52 + 59*x^51 + 60*x^50 + 61*x^49 + 62*x^48 + 63*x^47 + 64*x^46 + 65*x^45 + 66*x^44 + 67*x^43 + 68*x^42 + 69*x^41 + 70*x^40 + 71*x^39 + 72*x^38 + 73*x^37 + 74*x^36 + 75*x^35 + 76*x^34 + 77*x^33 + 78*x^32 + 79*x^31 + 80*x^30 + 81*x^29 + 82*x^28 + 83*x^27 + 84*x^26 + 85*x^25 + 86*x^24 + 87*x^23 + 88*x^22 + 89*x^21 + 90*x^20 + 91*x^19 + 92*x^18 + 93*x^17 + 94*x^16 + 95*x^15 + 96*x^14 + 97*x^13 + 98*x^12 + 99*x^11 + 100*x^10 +\\\n 101*x^9 + 102*x^8 + 103*x^7 + 104*x^6 + 105*x^5 + 106*x^4 + 107*x^3 + 108*x^2 + 109*x + 110

in particular, at the 1000th character, there is

... + 100*x^10 +\\\n 101*x^9 + ...

I tried to replicate the problem on two other computers (with Windows 10 and Linux Mint 18), but it won't appear. Why is that?

If it can help, my configuration is

OS: Arch Linux
WM: awesome
MATLAB: 2017a (academic)

Answer 1

[Walter Roberson]

This is a bug in the Symbolic Toolbox. See https://www.mathworks.com/matlabcentral/answers/337896-odd-r-n-output-from-symbolic-multiplication#answer_265002