Turing is an actively used programming language created in 1982.

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Example code from the web:

% Accepts a number and calculates its factorial

function factorial (n: int) : real
     if n = 0 then
          result 1
     else
          result n * factorial (n - 1)
     end if
end factorial

var n: int
loop
     put "Please input an integer: " ..
     get n
     exit when n >= 0
     put "Input must be a non-negative integer."
end loop

put "The factorial of ", n, " is ", factorial (n)

Example code from Linguist:

% Accepts a number and calculates its factorial

function factorial (n: int) : real
	if n = 0 then
		result 1
	else
		result n * factorial (n - 1)
   end if
end factorial

var n: int
loop
	put "Please input an integer: " ..
	get n
	exit when n >= 0
	put "Input must be a non-negative integer."
end loop

put "The factorial of ", n, " is ", factorial (n)

Example code from Wikipedia:

% Accepts a number and calculates its factorial
 
 function factorial (n: int) : real
      if n = 0 then
           result 1
      else
           result n * factorial (n - 1)
      end if
 end factorial
 
 var n: int
 loop
      put "Please input an integer: " ..
      get n
      exit when n >= 0
      put "Input must be a non-negative integer."
 end loop
 
 put "The factorial of ", n, " is ", factorial (n)
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Last updated February 11th, 2019