42 lines
1.1 KiB
Julia
42 lines
1.1 KiB
Julia
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# Also possible to enforce types on local variables
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function main()
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# Int is an alias for Int32 or Int64 depending on your installation
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# 32 bit vs 64 bit
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a::Int = 14
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b::Int = 7
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# Enforces the type of c for the rest of the scope
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c::Int = a + b
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@show typeof(c) c # The @show macro is basically a debug print
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# Normal division of integers returns Float64
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# Assignment to c tries to convert result to the
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# type of c as the type is enforced.
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# If unable to convert to Int it throws an appropriate exception
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c = a / b
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@show typeof(c) c
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# // is rational division. This returns a rational number
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c = a // b
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@show typeof(c) c
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# Integer division is done by div, fld or cld (floor divide/ceil divide)
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# div rounds towards zero (1.5 -> 1, -2.7 -> -2)
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# floor rounds downwards (1.5 -> 1, -2.7 -> -3)
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# ceil rounds upwards (1.5 -> 2, -2.7 -> -2)
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c = div(a, b)
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c = fld(a, b)
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c = cld(a, b)
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# Exponentiation is done with the ^ symbol as in most calculator programs
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c = a^b
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@show c
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end
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main()
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