split a string with strsplit unique

I have this string

a='Position=a.Velocity=b.Acceleration=c.'

strsplit(a,{'Velocity=','.'})

ans = 

      'Position=a'    'b'    'Acceleration=c'    ''

but the result I want in ans is only b how I can do it?

Answer 1

[Star Strider]

Experiment with the regexp function.

Example:

a='Position=a.Velocity=b.Acceleration=c.';
Vel = regexp(a, '(?<=Velocity=)\w', 'match')

Vel =

    cell

      'b'

[Patrick Brown]

and in the case that you have more than one letter for example

a='Position=ah.Velocity=bl.Acceleration=ck.';

[Star Strider]

... add a ‘+’ after the ‘\w’ to match more than one letter:

a ='Position=ah.Velocity=bl.Acceleration=ck.';
Vel = regexp(a, '(?<=Velocity=)\w+', 'match')

Vel =

    cell

      'bl'