Numerator Quick Reference
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          Numerator Start Up Options
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          -B / -b          setting background color
          -C / -c          automatic command execution
          -N / -n          non-TSR mode
          -Q / -q          unloading without END
          -T / -t          setting text color



         Numerator Operators
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          :                display line with no line feed  
                           conditional operator  
          ;                statement separator 
          !                factorial operator  
          !=               not equal operator  
          ? :              conditional operators  
          ( )              parentheses as expression group
          +                addition operator  
          -                subtraction operator
                           unary minus
          *                multiplication operator  
          /                division operator
          ^                exponentiation operator
          <                less than operator
          <<               shift left operator  
          <=               less than or equal operator  
          ==               equivalence operator  
          >                greater than operator 
          >=               greater or equal to operator  
          >>               shift right operator  
          %                percent operator (divide by 100)
          %%               last result  
          &                bitwise AND operator  
          \n               used as newline character 
          |                bitwise OR operator
          ~                bitwise complement operator
          IDIV             integer division
          OF               multiply


          Numerator Commands  
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          %%               retrieve last result
          BIN              show results as binary numbers 
          CALL             execute statements from file and return
          COPY             copy results to application 
          DEC              show results as decimal numbers
          DO               use statements from a file
          END              end Numerator processing 
          ENDIF            end of conditional execution
          GET              fill in variable from user value
          HEX              show results as hexadecimal numbers
          IF               conditional execution
          NEW              remove all variables
          NOSYMS           no usage of constants or conversions
          OFF              suspend Numerator
          OUTR             write responses to file
          OUTS             write statements to file
          PREC             set numeric conversion

          Numerator Functions
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          abs     (x)      find absolute value of expression
          acos    (x)      return arc cosine of angle
          asin    (x)      returns arcsine of angle
          atan    (x)      return arc tangent of angle 
          atan2   (x, y)   returns arc tangent of ratio of expressions
          ceil    (x)      find smallest integral value greater than
                           expression 
          comb    (x, y)   return combinations of x taken y at a time
          complex (x, y)   return absolute value of complex value
          cos     (x)      return cosine of angle
          cosh    (x)      return hyperbolic cosine of angle
          dtor    (x)      convert degrees to radians
          exp     (x)      return exponential of expression
          floor   (x)      return smallest integer less than expression 
          fmod    (x, y)   find floating point remainder
          frac    (x)      find fractional part of real number
          hypot   (x, y)   return length  of hypotenuse  of right triangle 
          int     (x)      return integral part of expression
          ln      (x)      return natural logarithm of expression
          log     (x)      return base 10 logarithm of expression
          perm    (x, y)   return permutations of x taken y at a time
          pow     (x, y)   return expression raised to a power
          rand    (x)      return random integer in a range
          rtod    (x)      convert radians to degrees
          sin     (x)      return sin of angle 
          sinh    (x)      return hyperbolic sine of angle
          sqrt    (x)      return square root of expression
          tan     (x)      return tangent of angle 
          tanh    (x)      return hyperbolic tangent of angle