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-2.2.1.159	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.158	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.157	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.156	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.155	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.154	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.153	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.152	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.151	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.150	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.149	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.148	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.147	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.146	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.145	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.144	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.143	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.142	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.141	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.140	tracks/julia/exercises/difference-of-squares/example.jl