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divide a string every 15 characters

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Andrea Somma
Andrea Somma 2022-5-7
评论： Star Strider 2022-5-7
I want to divide this string into 5 strings long 15 characters
A = ["+6.64430238e+00+1.14987825e-02-4.68099585e-06+9.62334222e-10-8.24360065e-14"]; %from this
B = ["+6.64430238e+00" "+1.14987825e-02" "-4.68099585e-06" "+9.62334222e-10" "-8.24360065e-14"]; %to this

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Star Strider
Star Strider 2022-5-7
Ran in:
Try this —
A = ["+6.64430238e+00+1.14987825e-02-4.68099585e-06+9.62334222e-10-8.24360065e-14"];
B = string(reshape(char(A),15,[])')'
B = 1×5 string array
"+6.64430238e+00" "+1.14987825e-02" "-4.68099585e-06" "+9.62334222e-10" "-8.24360065e-14"
.
  4 个评论
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Jan
Jan 2022-5-7
@Star Strider: How does this work with string methods only?
This is 20 times slower:
function B = StepSplit(A, w)
len = strlength(A);
n = ceil(len / w);
B = strings(1, n);
c = 1;
for k = 1:n - 1
B(k) = extractBetween(A, c, c + w);
c = c + w;
end
B(n) = extractBetween(A, c, len);
end
Star Strider
Star Strider 2022-5-7
I did not experiment with string methods. I found an approach that worked, and went with it.

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