How to make the variable pace, a data type double

I am trying to make a function that gives me the pace required given an athletes goal

function pace = required_pace(time,distance) % time = [hrs,mins,secs] distance = km
time=floor(time)
a=time/distance
pace=duration(a,'Format','hh:mm:ss')
end
% Calling the function
time=[0,33,3] % the altheltes goal times
distance=10 %km
required_pace(time,distance)
% i get pace=0:3:18 per km

So, i think i got the right answer but i am required to have the variable pace be a data type double and i am not sure how i am meant to write the function code to get that

Answer 1

[Stephen23]

T = [0,33,3]; % the atheletes goal time [H,M,S]
D = 10; % km
P = required_pace1(T,D)

P = 1×3

0 3.0000 18.3000

class(P)

ans = 'double'

P = required_pace2(T,D)

P = 1×3

0 3.0000 18.3000

% Using DURATION:
function pace = required_pace1(time,distance) % time = [H,M,S], distance = km
durn = duration(time,'Format','hh:mm:ss.SSSSSSSS');
pace = sscanf(char(durn/distance),'%f:',[1,Inf]);
end
% Without DURATION:
function pace = required_pace2(time,distance) % time = [H,M,S], distance = km
secs = [60*60,60,1]*time(:);
temp = secs/distance;
pace = nan(1,3);
pace(3) = mod(temp,60); % seconds
temp    = fix(temp/60);
pace(2) = mod(temp,60); % minutes
temp    = fix(temp/60);
pace(1) = temp;         % hours
end

[B]

Thanks, i am pretty new to Matlab, for future reference could you explain to me what line

pace = sscanf(char(durn/distance),'%f:',[1,Inf]);

is doing

[Stephen23]

"for future reference could you explain to me what line ... "

sscanf(char(durn/distance),'%f:',[1,Inf]);
%           ^^^^^^^^^^^^^                  divide duration by distance
%      ^^^^^             ^                 convert duration to character
%^^^^^^                   ^^^^^^^^^^^^^^   convert character to double

You can easily see the intermediate results yourself by printing them to the command window.

Answer 2

[Matt J]

pace=time/distance

[B]

yeah i have done that before but i get

pace=[0,3.3,0.3]
%what i need is 
pace=[0,3,18.3]%[hrs,mins,sec]