How to extract only floating numbers from a string

Here is my string "21.5VgDC_0.05000V_VgAC_50M-150M30ms47GV1" How can I extract only the numbers 21.5, 0.05000, 50, 150 30 and 47 from the string. Thanks in advance

[Jan]

What's about '1e-5', '1D+004', '.1'?

Answer 1

[Stephen23]

>> S = '21.5VgDC_0.05000V_VgAC_50M-150M30ms47GV1';
>> C = regexp(S,'\d+\.?\d*','match');
>> C{:}
ans = 21.5
ans = 0.05000
ans = 50
ans = 150
ans = 30
ans = 47
ans = 1

[parmeshwar prasad]

Thank you very much. Your code solved my problem.

[Nadatimuj]

What if I use C = regexp(S,'\d*\.?\d*','match')?

And what if I use C = regexp(S,'\d*\.?\d+','match')

What is the difference?

[Walter Roberson]

In the first one everything is optional, so it matches the empty pattern too.

The second one does require at least one digit. However it does not support digits followed by a decimal point with no digits after

Answer 2

[Riadh Essaadali]

C = regexp(S,'[-+]?\d+\.?\d*','match');