Contents

# This uses reduce instead of sum because sum can't handle empty collections properly.
# There is no universal zero-element, so it has to be specified manually and cannot
# be determined automatically. Otherwise, n=0 will cause an error.
sum_of_squares(n::Int) = reduce(+, 0, i^2 for i in 1:n)

# However, sum{T<:Real}(r::Range{T}) can handle "empty" ranges.
square_of_sum(n::Int) = sum(1:n)^2

difference(n::Int) = square_of_sum(n) - sum_of_squares(n)

Version data entries

318 entries across 318 versions & 1 rubygems

Version	Path
trackler-2.2.1.180	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.179	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.178	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.177	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.176	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.175	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.174	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.173	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.172	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.171	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.170	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.169	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.167	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.166	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.165	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.164	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.163	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.162	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.161	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.160	tracks/julia/exercises/difference-of-squares/example.jl