interpretation for answer code

Hi everybody I got this answer for my numerical calculation by matlab. What's the meaning of the details, like 'n' 'h' or'nh' or e-01 in the answer. Any help is appreciated.

n h sum

4 2.500000e-01 0.91193343

[A Jenkins]

Perhaps it would help if you told us your calculation?

Answer to the Ultimate Question of Life, the Universe, and Everything (42)

(The 'e' is scientific notation and means times ten raised to the power of.)

[John]

Thanks a lot A Jenkins.

[Star Strider]

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