How to keep scientific notation in string.

I have some values in an array in matlab

epsilon=[1e-01,9e-02,8e-02]

I want to turn these values into a string so I can use them on plots etc.

stringepsilon=string(epsilon)

but the output is not in scientific format :

stringeps="0.1" "0.89" "0.08"

how do I make it appear in scientific format.

Answer 1

[Awais Saeed]

epsilon=[1e-01,9e-02,8e-02];
% try num2str()
str1 = string(num2str(epsilon,'%.e '))

str1 = "1e-01 9e-02 8e-02"

% or try sprintf()
str2 = string(sprintf('%.e ',epsilon))

str2 = "1e-01 9e-02 8e-02 "

whos

  Name         Size            Bytes  Class     Attributes

  epsilon      1x3                24  double              
  str1         1x1               170  string              
  str2         1x1               172  string              

[daniel adams]

Yeh I dont really want size $1x1$ though?

Answer 2

[Walter Roberson]

epsilon=[1e-01,9e-02,8e-02];
compose("%.e", epsilon)

ans = 1×3 string array
    "1e-01"    "9e-02"    "8e-02"