How to input complex number in polar coordinate?

General Usage
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1

I have a complex number 25∠10. How can I input it such as polar(magnitude, angle)?
what are the functions to convert (from degree to rad) and (rad to degree)?

2 
julia> 25 * cis(deg2rad(10))
24.6201938253052 + 4.341204441673258im

using cis and deg2rad (see also rad2deg).

3

Linking this nice solution by @stevengj too.