	Note, You need the Visual-Basic runtime file Vb40032.dll in your 
     windows\system directory. If you don't already have it, net-search
     and download it from one of the many sites.
     
     	Note the original message displayed by WEVAL.EXE (originally
     file name WINEVAL.EXE):
     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
	EVAL is fully functional and may be used for a 30-day trial period.
	If you plan to continue using EVAL after the trial period, you are 
	obligated to pay the modest registration fee of $20, which entitles
	you to the latest version of EVAL with the "nag" messages removed,
	along with a smaller, math-chip version a free upgrade, and 
	half-priced subsequent upgrades. Send check or money order
	to Copy Con Inc., PO Box 23255, Baltimore MD 21203. 
	Thanks for trying EVAL
     @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

	Note, write your equation on the top text field, then Enter or
     double click or end with "?". Finally click on the "Click to evaluate"
     button.

	Note, don't leave spaces between operators, or the = sign
     a = b must be trimmed to a=b  when pasting back to insert window.

     EVAL V1.06 Copyright (c) 1991-1992 Copy Con Incorporated        Page 1
     (this Page 1 moved to end of this file).

     	Modified for WinEval, a Windows 95 interface, by Dan Censor, 
     April 29, 99.
    _______________________________________________________________________
   |                                                                       |
   | * Dan Censor (dani to friends and admirers)                           |    | * CENSOR@EESRV.EE.BGU.AC.IL                                           |
   | * Department of Electrical and Computer Engineering,                  |
   |   Ben Gurion University of the Negev, Beer Sheva, ISRAEL 84105        |
   | * Home: 15/3 Nordau St., Beer Sheva, ISRAEL 84897                     |
   | * +972-7-6461511 (voice), +972-7-6472949 (fax), +972-7-6279097 (home) |
   |_______________________________________________________________________|


     EVAL V1.06 Copyright (c) 1991-1992 Copy Con Incorporated        Page 2

     
     OPERATION (DOS only)
     --------------------
     EVAL is activated from the command line, using the format

        EVAL [variable=expression;...] expression [options]

     Expressions are mathematical formulas built with the supported
     functions, operators, constants and variables.


     FUNCTIONS
     ---------
     Following are the functions that EVAL supports:

        Function  Description
        --------  -----------
          abs     Absolute value
          acos    Arc cosine
          arg     Angle of input value in the complex plane
          asin    Arc sine
          atan    Arc tangent
          ceil    Smallest integer not less than input value (rounds up)
          conj    Complex conjugate of input value
          cos     Cosine
          cosh    Hyperbolic cosine
          csc     Cosecant
          ctn     Cotangent
          cub     Cube root
          exp     E to the power of input value
          flr     Largest integer not more than input value (rounds down)
          frac    Fractional part of input value
          imag    Imaginary part of complex number
          int     Integer part of input value
          ln      Natural logarithm
          log     Natural logarithm (same as LN)
          logt    Base 10 logarithm
          norm    Square of the absolute value
          rand    Random integer between 1 and input value (max 32767)
          real    Real part of complex number
          sec     Secant
          sgn     Sign of input value (positive=1, negative=-1, zero=0)
          sin     Sine
          sinh    Hyperbolic sine
          sqr     Square (x^2)
          sqrt    Square root
          tan     Tangent
          tanh    Hyperbolic tangent



     EVAL V1.06 Copyright (c) 1991-1992 Copy Con Incorporated        Page 3


     FUNCTIONS (continued)
     ---------------------
     Parentheses are optional when using functions; if they are not used,
     only the first value following the function will be considered the
     argument. For example:

        sin pi      evaluates to   sin(pi)
        sin pi/2    evaluates to   sin(pi)/2
        sin(pi/2)   evaluates to   sin(pi/2)

     Use of functions without parentheses is potentially dangerous, and it
     is generally preferable to use parens to indicate function arguments.


     OPERATORS
     ---------
     Each operator has a precedence, and operators with higher precedence
     are evaluated before operators with lower precedence. Operators with
     equal precedence are handled from left to right within a function.

     Precedence is indicated by order in the following table (the first
     line has the highest precedence):

        Operators  Description
        ---------  -----------
           ( )     Left parenthesis,Right parenthesis
            !      Unary factorial
           + -     Unary sign
            ^      Exponential
          * / %    Multiplication,Division,Modulus
	In WinEval use for Modulus %% Example 10%%3 (result 1)
           + -     Addition,Subtraction

     Where it is not ambiguous, multiplication can be indicated by
     adjacency: 8(6-4) = 8*(6-4) = 16. Implicit multiplication is
     potentially dangerous, and it is generally preferable to use * to
     indicate multiplication.


     CONSTANTS
     ---------
     EVAL supports numeric constants, and three alphabetic constants, PI,
     E, and I. Alphabetic constants cannot directly follow functions; use
     "cos pi" or "cos(pi)", not "cospi". Numeric constants need not be
     separated from functions; "sin3" is okay.

     Numerical constants are entered just as you would ordinarily write
     them. They can be preceeded with optional + or - signs. The following
     are all valid numerical entries:

                        6.78    0.678   .678   -678

     Blanks are not permitted in numbers; the expression "7 8" would be
     evaluated as 7 times 8, not 78.



     EVAL V1.06 Copyright (c) 1991-1992 Copy Con Incorporated        Page 4


     CONSTANTS (continued)
     ---------------------
     Complex numbers can be used as easily as real numbers. Any of EVAL's
     functions which are mathematically defined for complex values (like
     SIN and EXP) will accept complex arguments. Complex numbers are
     entered using the form "x+yi" where "i" is equivalent to the square
     root of -1. The following are all valid complex number entries:

                         3+4i    5.2-3.45i    -63i

     Alphabetic constants can also be used as easily as real numbers; just
     be careful not to string them together with functions, variables, and
     other alphabetic constants; instead of "lne+api", use "ln e + a pi",
     or "ln(e)+a*pi". "3pi/2" and "4i" are valid, as EVAL can tell where
     one constant ends and another begins.

     Following are the approximate values of the alphabetic constants:

        PI = 3.14159265
        E  = 2.71828183
        I  = sqrt(-1)


     VARIABLES
     ---------
     The letters A-Z (except for E and I) are set aside as user-definable
     variables. Variables have a default value of 0, and are assigned
     values using the equals sign. For example:

        EVAL a=pi;b=cub(8);b*cos(a)

     will assign a value of PI to A, a value of 2 to B, and will print out
     the value of B times the cosine of A. As with alphabetic constants,
     variables cannot directly follow functions; use a space delimiter, or
     parentheses as above.


     OPTIONS
     -------
     Options must be in the form "OPTION:value", as in "a:g" or "d:5". Case
     is not important. Separate options with spaces.

     Option  Description
     ------  -----------
       A     Angular unit - whether angles will be expressed as degrees,
             radians, or grads. Use the first letter of the unit, as in
             "a:d". By default, angular units are expressed as radians.

       D     Significant Digits - the number of significant digits shown in
             the expression outcome. Range is 1 thru 18; the default is 10.

       V     Show Variables - whether variables and their values will be
             displayed as they are assigned values. If this option is set
             to F, the formulas will also be shown. Default is Y.



     EVAL V1.06 Copyright (c) 1991-1992 Copy Con Incorporated        Page 5


     ERROR MESSAGES
     --------------
     Following are error messages you may come across, along with their
     descriptions and corresponding DOS errorlevels:

     Level  Message & Description
     -----  ---------------------
       1    Invalid input - you have attempted to use an unsupported
            option, or you have exceeded an option's range.

       2    Invalid function '(function)' - you have attempted to use an
            unsupported function. If it's a common function, let us know,
            and we will add it.

       3    Abnormal program termination - either we erred in trapping a
            math function, or the program has been corrupted somehow.
            (Please drop us a line describing everything that led up to
            this error, if you happen to come across it.)

       4    Expression too complex - your formula has 128 or more
            constants, or more than 255 combined constants, functions, and
            operators.

       5    Invalid operator '(op)' - you have attempted to use an
            unsupported operator. If it's a common operator, let us know,
            and we will add it.

       6    Mixmatched parentheses - there were an uneven amount of
            parentheses, or a right parenthesis was encountered before its
            matching left paren.

       7    Invalid use of functions - functions cannot be directly
            followed by an operator (unless the operator is a "+" or "-"
            indicating the sign of the value that follows).

       8    Invalid use of operators - operators cannot be directly
            followed by other operators (unless the second operator is a
            "+" or "-" indicating the sign of the value that follows).

       9    Invalid variable '(variable)' - an attempt was made to assign a
            value to a constant or a non-variable.

      10    Division by zero - a denominator in your formula has a value of
            zero, which is mathematically undefined.

      11    Argument domain/range - a function in the formula cannot
            evaluate its input value, as the value is outside of the
            function's range.

      12    Argument singularity - formula would result in a singularity.

      13    Overflow - the formula evaluates to a result greater than the
            maximum allowed.



     EVAL V1.06 Copyright (c) 1991-1992 Copy Con Incorporated        Page 6


     ERROR MESSAGES (continued)
     --------------------------

     Level  Message & Description
     -----  ---------------------
      14    Underflow - the formula evaluates to a result less than the
            minimum allowed.

      15    Total significance loss - formula would produce a result with
            a total loss of significant digits.


     EXAMPLES
     --------
     EVAL sqr3 d:4
          displays the square root of 3, limited to 4 significant digits.
          ( sqr3 evaluates to sqr(3) )

     EVAL a=pi ; b=cub 8 ; b*cos(a)
          assigns a value of PI to A, a value of 2 to B, and displays the
          value of B times the cosine of A. The values of A and B are also
          displayed. (The spaces around the semicolons are not required)

     EVAL x=1/10 ; asin(5x) a:d v:n
          assigns a value of .1 to X, and displays the arcsine of quantity
          5 times X, expressed in degrees. The value of X is not displayed.
          ( 5x is equivalent to 5*x )

     EVAL (2+4i)/(6-8i)
          displays the result of the first complex number divided by the
          second complex number.

     EVAL 3*4!
          displays the result of 4 factorial, times 3. Since factorials are
          higher in precedence than multiplication, use "EVAL (3*4)!" to
          show 3 times 4 quantity, factorial.


     CORRESPONDENCE
     --------------
     If you have questions, comments, suggestions, bug reports, etc.,
     feel free to contact us by one of the following methods:

     1: By modem at The Programmer's Corner (301-596-1180 or 410-995-3744).
        Send a message to user number 3000, and check back in a couple of
        work days for a reply.

     2: By U.S. Mail at the address given on the first page. If you would
        like a reply, please include a self-addressed, stamped envelope.

     We look forward to hearing from you.
--------------------------------------------------

     EVAL V1.06 Copyright (c) 1991-1992 Copy Con Incorporated        Page 1
     (moved to end)

     TO PRINT THIS FILE, TYPE "COPY EVAL.DOC PRN" AT THE DOS PROMPT.


     OVERVIEW
     --------
     EVAL is a mathematical expression evaluator, capable of evaluating
     virtually any formula, including those with trigonometric functions,
     complex numbers, and user-defined variables. Formulas are typed in at
     the command line, and the formula and outcome (and optionally the
     variable values) are immediately displayed on your screen, or can be
     sent to any device or file via standard DOS redirection.


     DISCLAIMER
     ----------
     EVAL is distributed on an "AS IS" basis without warranty, expressed or
     implied. Considerable testing effort has been expended, but the user
     is advised to check the program's suitability before relying on it.
     The user assumes full risk as to the results of using this program.
     Any liability of the author will be limited exclusively to product
     replacement. In no event shall the author be liable for any incidental
     or consequential damages arising from the use, or inability to use
     this program.


     REGISTRATION
     ------------
     The unregistered version of EVAL is freely distributable and fully
     functional, and may be used for a 30-day trial period. If you plan to
     continue using EVAL after the trial period, you are obligated to pay
     the modest registration fee of $20. Registered users will receive the
     latest version of EVAL with the "nag" messages removed, along with a
     smaller, math-chip version of EVAL. Registration also entitles you to
     one free upgrade upon request, and half-priced subsequent upgrades.

     All registration information is contained in the REGISTER.TXT file. If
     that file is missing, register by sending a check or money order for
     $20 in U.S. dollars, drawn on a U.S. bank, to:

        Copy Con Incorporated
        P.O. Box 23255
        Baltimore, MD 21203-5255

     Please specify 3.5" or 5.25" diskette. MD residents add 5% sales tax.
     We thank you for your support.


======================================================