What is the meaning of Adding a String to a Double?

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Ajmal 2013-6-6

{
  x=17
  x_s = num2str(x)
  out = x_s+0
}
out is equal to [49  55] of type double
What exactly is going on?

Iain 2013-6-6

Strings are represented as integer values.

A = 65, B = 66...

You can ADD numbers, say, 65 + 1, and you would get 66, which is also B.

Adding 0 to a string is just a cheap way of turning a string into a double.

Its like doing xor(A,A) to get 0.

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