Split character arrays at given column

Hello I have the following character array,

val =

  3×79 char array

    ' 0.24971474E+01 0.17808300E-02-0.78001300E-06 0.14843700E-09-0.10340100E-13    '
    '-0.68234235E+03 0.12869436E+01 0.34385300E+01 0.14431400E-03-0.10819100E-06    '
    ' 0.21683900E-09-0.55430700E-13-0.10374900E+04-0.39268200E+01                   '

I want to be able to store all the numbers in a vector but str2num does not sem to work seeing as if the number is negative, there are no spaces between them. Each number occupies 15 spaces. I thought of adding a space at given columns but I'm not sure that is the best way to do this. I also want to avoid loops and do all three rows at once. If anyone can help and suggest what to use I'll be really thankful!

Answer 1

[Stephen23]

"I want to be able to store all the numbers in a vector ..."

That is easy with sscanf:

>> vec = sscanf(val.','%f')
vec =
   2.4971e+00
   1.7808e-03
  -7.8001e-07
   1.4844e-10
  -1.0340e-14
  -6.8234e+02
   1.2869e+00
   3.4385e+00
   1.4431e-04
  -1.0819e-07
   2.1684e-10
  -5.5431e-14
  -1.0375e+03
  -3.9268e+00