An expression must consist of either operands or operators. An operand is either an integer (e.g. 12), a real number (e.g. 7.28), or a number in scientific notation (e.g. 6.02e23, where the 'e' means 'times ten to the power of'). The operators are listed in the table below.

Operators are evaluated in the order of their precedence. If two operators of equal precedence are adjacent (e.g. 3+5-1, or 3*5/2) they will be performed left-to-right. Parenthesis may be used to force operators of lesser precedence to be evaluated first (e.g. 5*(3+4) will perform the addition first).

Note: All trigonometric operators interpret its operand as an angle in radians.

Valid Operators
Precedence	Operator	Description	Example	Example Result
1	+	Add	1+1	2
	-	Subtract	3-1 (binary op) -4 (unary op)	2 -4
2	*	Multiply	2*5	10
	/	Divide	7/2	3.5
3	^	Power: n^m means nm, or n to the power of m.	2^4	16
	d	Dice Roll: ndm means roll n m-sided dice and add the results together Note that n >= 1 and m >= 2. if n is not present, an implicit 1 is assumed.	3d6	Varies from 3 to 18
	root	n root m means the mth root of n. Note that m = 2 is the same as the sqrt operator, and that m = 3 is the cube root of n.	9 root 2	3
	P	Permutation: nPk is the number of permutations of n things taken k at a time. Note that n and k must be integers, that n >= 0 and n >= k >= 0.	6P2	30
	C	Combination: nCk is the number of combinations of n things taken k at a time. Note that n and k must be integers, that n >= 0 and n >= k >= 0.	8C3	56
4	sqrt	Square root	sqrt 5	2.236068
	log	Common (base-10) logarithm.	log 200	2.301029996
	ln	Natural (Napierian, or base-e) logarithm.	ln 20	2.99573227
	exp	Exponential of x, or ex.	exp 5	148.41315910
	sin	Sine of x, where x is in radians.	sin 0.523598756	0.5
	cos	Cosine of x, where x is in radians.	cos 1.04719755	0.5
	tan	Tangent of x, where x is in radians.	tan 0.7853981634	1.0
	csc	Cosecant of x, where x is in radians.	csc 0.523598756	2.0
	sec	Secant of x, where x is in radians.	sec 1.04719755	2.0
	cot	Cotangent of x, where x is in radians.	cot 0.7853981634	1.0
	vers	Versine of x, where x is in radians.
	covers	Coversine of x, where x is in radians.
	hav	Haversine of x, where x is in radians.
	exsec	Exsecant of x, where x is in radians.
	asin	Arcsine, or inverse sine, of x. The result will be in radians.	asin 0.5	0.523598756
	acos	Arccosine, or inverse cosine, of x. The result will be in radians.	acos 0.8660254	0.523598756
	atan	Arctangent, or inverse tangent, of x. The result will be in radians.	atan 1.0	0.7853981634
	avers	Arc-versine, or inverse versine, of x. The result will be in radians.
	acovers	Arc-coversine, or inverse coversine, of x. The result will be in radians.
	ahav	Arc-haversine of, or inverse haversine, x. The result will be in radians.
	aexsec	Arc-exsecant of, or inverse exsecant, x. The result will be in radians.
	sinh	Hyperbolic sine of x.	sinh 1.0	1.1752012
	cosh	Hyperbolic cosine of x.	cosh 1.0	1.5430806
	tanh	Hyperbolic tangent of x.	tanh 1.0	0.761594156
	csch	Hyperbolic cosecant of x.	csch 1.0	0.85091813
	sech	Hyperbolic secant of x.	sech 1.0	0.64805247
	coth	Hyperbolic cotangent of x.	coth 1.0	1.313035285
5	pi	The constant pi	pi	3.14159265359
	e	The constant e, base of the natural logarithms	e	2.71828182846
	!	Factorial: n! = n*(n-1)*(n-2)*...*2*1	5!	120