Valid Expression Syntax

CalcTree’s native parameters follow MathJS syntax for mathematical expressions. While most operators and functions behave the same as in MathJS, this page highlights the valid operators and notes a fe

Functional operators in CalcTree

This table shows the mathJS operators that are currently supported and fully functional in CalcTree.

Operator	Name	Syntax	Associativity	Example	Result
(, )	Grouping	(x)	None	2 * (3 + 4)	14
[, ]	Matrix, Index	[...]	None	[[1,2],[3,4]]	[[1,2],[3,4]]
{, }	Object	{...}	None	{a: 1, b: 2}	{a: 1, b: 2}
,	Parameter separator	x, y	Left to right	max(2, 1, 5)	5
.	Property accessor	obj.prop	Left to right	obj={a: 12}; obj.a	12
;	Row separator	[x; y]	Left to right	[1,2;3,4]	[[1,2],[3,4]]
+	Add	x + y	Left to right	4 + 5	9
+	Unary plus	+y	Right to left	+4	4
-	Subtract	x - y	Left to right	7 - 3	4
-	Unary minus	-y	Right to left	-4	-4
*	Multiply	x * y	Left to right	2 * 3	6
.*	Element-wise multiply	x .* y	Left to right	[1,2,3] .* [1,2,3]	[1,4,9]
/	Divide	x / y	Left to right	6 / 2	3
./	Element-wise divide	x ./ y	Left to right	[9,6,4] ./ [3,2,2]	[3,3,2]
%	Percentage	x%	None	8%	0.08
%	Addition with Percentage	x + y%	Left to right	100 + 3%	103
%	Subtraction with Percentage	x - y%	Left to right	100 - 3%	97
% mod	Modulus	x % y	Left to right	8 % 3	2
^	Power	x ^ y	Right to left	2 ^ 3	8
.^	Element-wise power	x .^ y	Right to left	[2,3] .^ [3,3]	[8,27]
'	Transpose	y'	Left to right	[[1,2],[3,4]]'	[[1,3],[2,4]]
!	Factorial	y!	Left to right	5!	120
&	Bitwise and	x & y	Left to right	5 & 3	1
~	Bitwise not	~x	Right to left	~2	-3
|	Bitwise or	x | y	Left to right	5 | 3	7
^|	Bitwise xor	x ^| y	Left to right	5 ^| 2	7
<<	Left shift	x << y	Left to right	4 << 1	8
>>	Right arithmetic shift	x >> y	Left to right	8 >> 1	4
>>>	Right logical shift	x >>> y	Left to right	-8 >>> 1	2147483644
and	Logical and	x and y	Left to right	true and false	false
not	Logical not	not y	Right to left	not true	false
or	Logical or	x or y	Left to right	true or false	true
xor	Logical xor	x xor y	Left to right	true xor true	false
? :	Conditional expression	x ? y : z	Right to left	15 > 100 ? 1 : -1	-1
:	Range	x : y	Right to left	1:4	[1,2,3,4]
to, in	Unit conversion	x to y	Left to right	2 inch to cm	5.08 cm
==	Equal	x == y	Left to right	2 == 4 - 2	true
!=	Unequal	x != y	Left to right	2 != 3	true
<	Smaller	x < y	Left to right	2 < 3	true
>	Larger	x > y	Left to right	2 > 3	false
<=	Smallereq	x <= y	Left to right	4 <= 3	false
>=	Largereq	x >= y	Left to right	2 + 4 >= 6	true

MathJS operators not functional in CalcTree

The table lists MathJS operators that are not yet supported in the CalcTree environment.

Operator	Name	Syntax	Associativity	Example	Result
;	Statement separator	x; y	Left to right	a=2; b=3; a*b	[6]
\n	Statement separator	x \n y	Left to right	a=2 \n b=3 \n a*b	[2,3,6]
=	Assignment	x = y	Right to left	a = 5	5