Convert Minutes to hours and minutes

How to convert minutes to hours and minutes only?

Answer 1

[Star Strider]

See if this does what you want:

hr_min = @(mins) [fix(mins/60) rem(mins,60)];   % Minutes —> [Hrs Min]

mins = [0:15:1440]';                            % Test Data
test = hr_min(mins)                             % Test Output

[Victor Seaw]

mins = [0:15:1440] the 15 means the minutes and whats the 1440 means?

[Star Strider]

That is a test vector to show that my function works.

There are 60*24=1440 minutes/day.

[Victor Seaw]

what does @(mins) means?

[Star Strider]

My ‘hr_min’ function is an Anonymous Function. The ‘@(mins)’ creates a ‘function handle’ (preceded by the ‘@’ sign). In that anonymous function, ‘@(mins)’ tells MATLAB that ‘mins’ is the argument to the function.

(Anonymous functions pick up any other previously declared variables from the workspace, unless they are declared in the argument list. There are no other variables in my ‘hr_min’ function, so that doesn’t apply to it here.)

[Victor Seaw]

fix(mins/60) rem(mins,60) what are these for? floor(mins./60),mod(mins,60) is there any difference from these two?

[Star Strider]

The fix truncates everything to the right of the decimal, producing only the whole number. The difference between fix and floor is that fix rounds toward zero and floor rounds toward negative infinity, so for positive arguments they are the same.

In my function, the fix call creates the hours part of the output.

The rem call takes the remainder after division, creating the minutes part of the output.

For a discussion of rem and mod, I refer you to Differences Between mod and rem. The documentation gives a better description than I could.

[Victor Seaw]

meaning rem simply follow the +,- sign of the dividend while mod follow +,- of the divider?

[Star Strider]

That, and the behaviours where the divisor is zero.