22 lines
549 B
Julia
22 lines
549 B
Julia
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# The broadcast operator (.) can be quite useful when dealing with arrays.
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# Basically whenever an operator or function is used, you can just write
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# a dot (.) before the operator/function to make it act elementwise.
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# Here we elementwise add 3 to the array
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a = [1, 2, 3, 4]
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a .+= 3
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@show a
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# Here we elementwise multiply a by 2 and then elementwise add a and b.
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b = a .* 2
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@show b
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c = a .+ b
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@show c
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# To elementwise use more general functions the dot symbol is placed between
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# the function name and parentheses.
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f(x) = 2x^2
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d = f.(c)
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@show d
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