Where can I find the posixtime() function for MacOSX R2018a?

>> posixtime(1) Undefined function 'posixtime' for input arguments of type 'double'.

Answer 1

[Kodavati Mahendra]

syntax

p = posixtime(t)

t should be datetime array, not an integer or so.

For example

    posixtime(datetime('now'))

[Steven Goldsmith]

Thanks. That works.