I’d like to write a function f(n::Int)::String such that f(1) = "x₁", f(2) = "x₂" and so on (assume 1<=n<=9 for simplicity). Since julia> 'x' * '\u2081' "x₁" Let n=3; the syntax 'x' * '\u' * string(n + 2080) is invalid: ERROR: syntax: invalid escape sequence. The backslash can be escaped with “ra…

This works julia> foo(i) = "x" * Char(0x2080 + i) foo (generic function with 1 method) julia> foo(1) "x₁" julia> foo(2) "x₂" julia> foo(3) "x₃"

String subscript given as integer

stevengj January 7, 2022, 1:52pm 5

subscript(i) = join(Char(0x2080 + d) for d in reverse!(digits(i)))

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