matlab输入公式绘制二维图，一直提示错误。求解救！

>> x=0:100000:5000000;
>> y=1./sqrt((2.65-0.00000000000000663*x.*x-93000000000000./x).^2+(0.0000000468*x-3200000./x).^2)

y =

1.0e-07 *

Columns 1 through 8

0 0.0108 0.0215 0.0323 0.0430 0.0538 0.0645 0.0753

Columns 9 through 16

0.0860 0.0968 0.1075 0.1183 0.1290 0.1398 0.1505 0.1613

Columns 17 through 24

0.1720 0.1828 0.1935 0.2043 0.2151 0.2258 0.2366 0.2473

Columns 25 through 32

0.2581 0.2688 0.2796 0.2903 0.3011 0.3118 0.3226 0.3333

Columns 33 through 40

0.3441 0.3548 0.3656 0.3763 0.3871 0.3978 0.4086 0.4194

Columns 41 through 48

0.4301 0.4409 0.4516 0.4624 0.4731 0.4839 0.4946 0.5054

Columns 49 through 51

0.5161 0.5269 0.5376

>>