How can I split a word to parts?

Hi all, Well I want to split a word into parts for example I have sentence a='Hello World', and I want to b='llo', How can I do such thing?

[Azzi Abdelmalek]

Your question is not enough clear

[Giorgi]

well I have a sentence that contains two words for example 'Hello World', I need a function that will give me an output for example b that would contain the last three letter of the first word. P.S Thanks for your response:)

[Stephen23]

Where do you want to split the words: at space characters, after the first n characters, the n final characters, after any doubled characters, two digits before any vowel character, or one of a million other rules that could explain your example output string?

Your description is inadequate.

[Giorgi]

I want to split at the first space character, well anyway for any sentence I want that function's output should be equal to the last three letter of the first word for a given sentence.

Answer 1

[Ilham Hardy]

thres = 3; %three last character of first word

a = 'Hello World';
b = strtok(a);
b = b(end-(thres-1):end);

[Giorgi]

Thank you very much :)

Answer 2

[Azzi Abdelmalek]

b='llo'