Stereogram Maker 2.1 - Parser List

Stereogram Maker 2.1 - Built-in Function Parser

Constant	Description
pi	The ratio of the circumference to the diameter of a circle, having a numerical value of approximately 3.14159.
e	The base of the natural system of logarithms, having a numerical value of approximately 2.7183.
x, x0, x1, x2, ...	(x,x0,x1,x2,...) are independent variables. Any number of independent variables can be used. Please note that, for this parser, 'x' and 'x00' are the same as 'x0', 'x017' and 'x0017' are the same as 'x17', and so on.

Constants | Operators | Functions

Operator	Description
^	Power. This operator is binary.
*	Multiplication. This operator is binary.
/	Division. This operator is binary.
+	Addition. This operator can be either unary or binary.
-	Subtraction. This operator can be either unary or binary.
==	X==Y returns 1 if X equals to Y, 0 otherwise. This operator is binary.
!=	X!=Y returns 1 if X does NOT equal to Y, 0 otherwise. This operator is binary.
>	X>Y returns 1 if X is greater than Y, 0 otherwise. This operator is binary.
<	X<Y returns 1 if X is less than Y, 0 otherwise. This operator is binary.
<=	X<=Y returns 1 if X is NO greater than Y, 0 otherwise. This operator is binary.
>=	X>=Y returns 1 if X is NO less than Y, 0 otherwise. This operator is binary.
&&	X&&Y returns 1 if both X and Y are nonzero, 0 otherwise. This operator is binary.
\|\|	X\|\|Y returns 1 if either X or Y is nonzero, 0 otherwise. This operator is binary.

Constants | Operators | Functions

Function	Description
acos	ACOS(X) calculates the arc cosine of X. X must be in the range -1 to 1. This function returns a value in the range 0 to pi.
asin	ASIN(X) calculates the arc sine of X. X must be in the range -1 to 1. This function returns a value in the range -pi/2 to pi/2.
atan	ATAN(X) calculates the arc tangent of X. X must be in the range -1 to 1. This function returns a value in the range -pi/2 to pi/2.
atan2	ATAN2(Y,X) calculates the arc tangent of Y/X. X and Y cannot both be 0. This function returns a value in the range -pi to pi.
ceil	CEIL(X) finds the smallest integer not less than X.
cos	COS(X) calculates the cosine of X. Angles are specified in radians. This function returns a value in the range -1 to 1.
cosh	COSH(X) calculates the hyperbolic cosine of X.
ein1	The frist of four Einstein functions, which is defined as: XXEXP(X)/((EXP(X)-1)*(EXP(X)-1)).
ein2	The second of four Einstein functions, which is defined as: X/(EXP(X)-1).
ein3	The third of four Einstein functions, which is defined as: LOG(1-EXP(-X)).
ein4	The last of four Einstein functions, which is defined as: X/(EXP(X)-1)-LOG(1-EXP(-X)).
exp	EXP(X) calculates the exponential e to the X.
fabs	FABS(X) returns the absolute value of X.
floor	FLOOR(X) finds the largest integer not greater than X.
fmod	FMOD(X,Y) calculates X modulo Y, the remainder of X/Y. This function returns 0 when Y = 0.
hardlim	Hard limit transfer function for neural networks. HARDLIM(X) returns 1 when X is positive, 0 otherwise.
hardlims	Symmetric hard limit transfer function for neural networks. HARDLIMS(X) returns 1 when X is positive, -1 otherwise.
hypot	HYPOT(X,Y) calculates hypotenuse of a right triangle. It is defined as: SQRT(XX+YY).
if_then	IF_THEN(X,Y,Z) returns Y if X does NOT equal to 0, returns Z otherwise.
log	LOG(X) calculates the natural logarithm of X. X must be greater than 0.
log10	LOG10(X) calculates the base 10 logarithm of X. X must be greater than 0.
logsig	Log sigmoid transfer function for neural networks. LOGSIG(X) returns the value of X squashed between 0 and 1.
max	MAX(X1,X2,...) returns the largest value. Two or more input arguments are required for this function.
mean	MEAN(X1,X2,...) returns the average or mean value. Two or more input arguments are required for this function.
median	MEDIAN(X1,X2,X3,...) returns the median value. At least three input arguments are required for this function.
min	MIN(X1,X2,...) returns the smallest value. Two or more input arguments are required for this function.
poslin	Positive linear transfer function for neural networks. POSLIN(X) returns the value of X when X is positive, 0 otherwise.
pow	POW(X,Y) calculates X to the power of Y. Y must be an integer when X is less than 0. And X and Y cannot both be 0.
purelin	Linear transfer function for neural networks. PURELIN(X) returns the value of X.
rand	RAND() returns a pseudo random number in the range 0 to 1.
rosen	Rosenbrock function, which is defined as: (1-X)(1-X)+105(Y-XX)(Y-X*X). This function is often used as a test problem for optimization algorithms. It has a global minimum of 0 at (1, 1).
round	ROUND(X) rounds X to the nearest integer.
satlin	Saturating linear transfer function for neural networks. SATLIN(X) returns the value of X truncated into the range 0 to 1.
satlins	Symmetric saturating linear transfer function for neural networks. SATLINS(X) returns the value of X truncated into the range -1 to 1.
sign	SIGN(X) returns 1 if X is greater than zero, 0 if it equals zero and -1 if it is less than zero.
sin	SIN(X) calculates the sine of X. Angles are specified in radians. This function returns a value in the range -1 to 1.
sinc	Sine cardinal. This function is defined as: SIN(X)/X.
sinh	SINH(X) calculates the hyperbolic sine of X.
sqrt	SQRT(X) calculates the positive square root of X. X must be not less than 0.
std	STD(X1,X2,...) returns the standard deviation. Two or more input arguments are required for this function.
tan	TAN(X) calculates the tangent of X. Angles are specified in radians.
tanc	This function is defined as: TAN(X)/X.
tanh	TANH(X) calculates the hyperbolic tangent of X.
tansig	Hyperbolic tangent sigmoid transfer function for neural networks. TANSIG(X) returns the value of X squashed between -1 and 1.

Constants | Operators | Functions

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This page was last modified on 12/16/2004.