Unicode.math-question-mark

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math?(codepoint_or_string)

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Specs

Returns true if a single Unicode codepoint (or all characters in the given string) the category :Sm otherwise returns false.

These are all characters whose primary usage is in mathematical concepts (and not in alphabets). Notice that the numerical digits are not part of this group.

Arguments

  • codepoint_or_string is a single integer codepoint or a String.t.

Returns

  • true or false

For the string-version, the result will be true only if all codepoints in the string adhere to the property.

Examples

iex> Unicode.math?(?=)
true

iex> Unicode.math?("=")
true

iex> Unicode.math?("1+1=2") # Digits do not have the `:math` property.
false

iex> Unicode.math?("परिस")
false

iex> Unicode.math?("∑") # Summation, \u2211
true

iex> Unicode.math?("Σ") # Greek capital letter sigma, \u03a3
false