Sync

Task/Higher-order-functions/Julia/higher-order-functions-3.julia

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+julia> all(iseven, 1:5)              # not all integers between 1 and 5 are even.
+false
+
+julia> findfirst(iseven, 1:5)        # the first even integer is at index 2 in the range.
+2
+
+julia> count(iseven, 1:5)            # there are two even integers between 1 and 5.
+2
+
+julia> filter(iseven, 1:5)           # here are the even integers in the given range.
+2-element Array{Int64,1}:
+ 2
+ 4
+
+julia> map(iseven, 1:5)              # we apply our function to all integers in range.
+5-element Array{Bool,1}:
+ false
+  true
+ false
+  true
+ false

Task/Higher-order-functions/MATLAB/higher-order-functions.m

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+   F1=@sin;	% F1 refers to function sin()
+   F2=@cos;	% F2 refers to function cos()
+
+   % varios ways to call the refered function 	
+   F1(pi/4)
+   F2(pi/4)
+   feval(@sin,pi/4)
+   feval(@cos,pi/4)
+   feval(F1,pi/4)
+   feval(F2,pi/4)
+
+   % named functions, stored as strings	
+   feval('sin',pi/4)
+   feval('cos',pi/4)
+   F3 = 'sin';
+   F4 = 'cos';
+   feval(F3,pi/4)
+   feval(F4,pi/4)