distinguishing exponential (e) from other characters with regexp

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sermet
sermet 2017-5-24
编辑： Stephen23 2017-5-24
omega=
'-1.86265e-09</'
'-1.86265e-09</'
'-1.74623e-09</'
'-1.74623e-09</'
'-1.62981e-09</'
'-1.62981e-09</'
'-1.74623e-09</'
'-1.62981e-09</'
'-1.86265e-09</'
'-1.62981e-09</'
'-1.86265e-09</'
%11x1 cell
I run the below code to extract only numeric parts of rows;
omega= regexp(omega,'[+-]?\d+\.?\d*', 'match');
But it also remove "e". How can I modify above code to get e as a numeric part?

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Stephen23
Stephen23 2017-5-24
编辑：Stephen23 2017-5-24
'[+-]?\d+\.?\d*([eE][+-]?\d+)?'
PS: If each string contains just one number then you should consider using the 'once' option as well, as this simplifies the outputs:
regexp(... 'match','once');

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