ComfyUI Node: 🔧 Simple Math

🔧 Simple Math+:

SimpleMath+ is a versatile node designed to perform a variety of mathematical operations on input values. It leverages Python's Abstract Syntax Trees (AST) to parse and evaluate mathematical expressions, allowing you to perform complex calculations with ease. This node supports basic arithmetic operations such as addition, subtraction, multiplication, and division, as well as more advanced functions like exponentiation, modulo, and bitwise operations. Additionally, it can handle custom functions like min, max, round, sum, and len, providing a comprehensive toolkit for mathematical computations. SimpleMath+ is particularly useful for AI artists who need to manipulate numerical data within their workflows, offering a straightforward and efficient way to achieve precise mathematical results.

🔧 Simple Math+ Input Parameters:

a

This parameter represents the first variable in the mathematical expression. It can be any numerical value that you want to include in your calculations. The value of a will be substituted wherever the variable a appears in the expression.

b

This parameter represents the second variable in the mathematical expression. Similar to a, it can be any numerical value and will be used wherever the variable b appears in the expression.

value

This parameter is the mathematical expression to be evaluated. It should be a string containing a valid mathematical expression that can include numbers, variables (a and b), operators, and supported functions. For example, "a + b * 2" or "max(a, b)".

🔧 Simple Math+ Output Parameters:

rounded_result

This output parameter provides the result of the evaluated mathematical expression, rounded to the nearest integer. It is useful when you need a whole number result for further processing or display purposes.

exact_result

This output parameter provides the exact result of the evaluated mathematical expression without any rounding. It is useful when you need the precise value for further calculations or analysis.

🔧 Simple Math+ Usage Tips:

• Ensure that the mathematical expression provided in the value parameter is a valid string and includes only supported operators and functions.
• Use the a and b parameters to dynamically change the values in your expression without modifying the expression string itself.
• Utilize the rounded_result output when you need an integer value and the exact_result output when precision is crucial.

🔧 Simple Math+ Common Errors and Solutions:

Invalid syntax in expression

• Explanation: This error occurs when the mathematical expression provided in the value parameter contains invalid syntax or unsupported characters.
• Solution: Double-check the expression for any typos or unsupported operators and ensure it follows the correct mathematical syntax.

Division by zero

• Explanation: This error occurs when the expression includes a division operation where the divisor is zero, leading to an undefined result.
• Solution: Ensure that the divisor in any division operation is not zero. You can add a conditional check in your expression to handle such cases.

NameError: name 'a' is not defined

• Explanation: This error occurs when the variable a is used in the expression but not provided as an input parameter.
• Solution: Make sure to provide a value for the a parameter if it is used in the expression.

NameError: name 'b' is not defined

• Explanation: This error occurs when the variable b is used in the expression but not provided as an input parameter.
• Solution: Make sure to provide a value for the b parameter if it is used in the expression.

math domain error

• Explanation: This error occurs when the expression includes a mathematical operation that is not defined for the given input values, such as taking the square root of a negative number.
• Solution: Ensure that the input values and operations in the expression are within the valid mathematical domain. Add checks or constraints to handle such cases.