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-2.2.1.139	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.138	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.137	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.136	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.135	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.134	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.133	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.132	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.131	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.130	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.129	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.128	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.127	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.126	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.125	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.124	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.123	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.122	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.121	tracks/julia/exercises/difference-of-squares/example.jl
trackler-2.2.1.120	tracks/julia/exercises/difference-of-squares/example.jl