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Operators in a Formula
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The following table lists the available operators. For each operator, an example is given of the syntax of using a literal value as well as a cell reference. The type of value returned is given for each type of operator.

Type of Operator Example Syntax Result
Operator Description Literal & Literal Cell Ref & Literal Type Returned
Binary Operators
+ Add 5 + 3 A1 + 3 double
Subtract 5 – 3 A1 – 3 double
* Multiply 5 * 3 A1 * 3 double
/ Divide 5 / 3 A1 / 3 double
^ Exponent 5 ^ 3 A1 ^ 3 double
& Concatenate "F" & "p" A1 & "p" string
= Equal   A1 <> 3 boolean
< > Not Equal   A1 = 3 boolean
< Less Than   A1 <3 boolean
> Greater Than   A1 > 3 boolean
<= Less Than Or Equal   A1 <= 3 boolean
>= Greater Than Or Equal   A1 >= 3 boolean
Unary Operators
- Negate -(5/3) -(A1/3) double
+ Plus +(5/3) +(A1/3) double
% Percent (5/3)% (A1/3)% double

Operators specify the type of calculation that you want to perform on the elements of a formula. Most of the operators return double-precision floating point values for mathematical operations and boolean (or logical) values for comparison operators.

In GcSpreadSheet, all arithmetic operators (including the unary +) check their arguments and return a #VALUE error if any of the arguments are strings that can not be converted to a number. This is mathematically correct behavior and can not be overridden. For example, the three formulas +B5 and 0+B5 and --B5 should all produce the same result and, in GcSpreadSheet, they do.