ComfyUI > Nodes > Efficiency Nodes for ComfyUI Version 2.0+ > Evaluate Integers

Class Name

## Evaluate Integers

Category

Efficiency Nodes/Simple Eval

Efficiency Nodes/Simple Eval

Author

jags111 (Account age: 3922 days)Extension

Efficiency Nodes for ComfyUI Version 2.0...Latest Updated

8/7/2024Github Stars

0.8K

jags111 (Account age: 3922 days)Extension

Efficiency Nodes for ComfyUI Version 2.0...Latest Updated

8/7/2024Github Stars

0.8K

- 1. Click the
**Manager**button in the main menu - 2. Select
**Custom Nodes Manager**button - 3. Enter
**Efficiency Nodes for ComfyUI Version 2.0+**in the search bar

After installation, click the **Restart** button to restart ComfyUI. Then, manually **refresh your browser** to clear the cache and access the updated list of nodes.

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Evaluate mathematical expressions with integer variables using custom Python expressions and specified integer values, leveraging `simpleeval` library for accurate results and console output for debugging.

The Evaluate Integers node is designed to evaluate mathematical expressions involving integer variables. This node allows you to input a custom Python expression and evaluate it using specified integer values for variables `a`

, `b`

, and `c`

. The primary benefit of this node is its ability to dynamically compute results based on user-defined expressions, making it highly versatile for various computational tasks. The node leverages the `simpleeval`

library to safely evaluate expressions, ensuring that the results are accurate and reliable. Additionally, it can print the evaluation process and results to the console for easy debugging and verification.

This parameter allows you to input the mathematical expression you want to evaluate. The expression should be a string and can include the variables `a`

, `b`

, and `c`

. The default value is `((a + b)

- c) / 2`, and it is not multiline.

This parameter determines whether the evaluation process and results should be printed to the console. It accepts two options: `True`

or `False`

. If set to `True`

, the node will print the input values and the evaluation results in integer, float, and string formats. The default value is `False`

.

This optional parameter represents the integer value for the variable `a`

in the expression. It has a default value of 0 and can range from -48000 to 48000, with a step of 1.

This optional parameter represents the integer value for the variable `b`

in the expression. It has a default value of 0 and can range from -48000 to 48000, with a step of 1.

This optional parameter represents the integer value for the variable `c`

in the expression. It has a default value of 0 and can range from -48000 to 48000, with a step of 1.

This output parameter provides the result of the evaluated expression as an integer. It is useful for scenarios where you need the result in a whole number format.

This output parameter provides the result of the evaluated expression as a float. It is useful for scenarios where you need the result in a decimal format.

This output parameter provides the result of the evaluated expression as a string. It is useful for scenarios where you need the result in a text format.

- Ensure that your
`python_expression`

is correctly formatted and uses the variables`a`

,`b`

, and`c`

as intended. - Use the
`print_to_console`

option set to`True`

for debugging purposes to see the input values and the evaluation results in different formats. - Adjust the values of
`a`

,`b`

, and`c`

to see how different inputs affect the result of your expression.

**Explanation**: This error occurs if the`python_expression`

contains invalid syntax or unsupported operations.**Solution**: Double-check the syntax of your expression and ensure it only includes supported operations and valid variable names.

**Explanation**: This error occurs if your expression involves division by zero.**Solution**: Ensure that the values of`a`

,`b`

, and`c`

are set in such a way that division by zero does not occur in your expression.

**Explanation**: This error occurs if the`python_expression`

uses variables other than`a`

,`b`

, or`c`

.**Solution**: Make sure your expression only uses the variables`a`

,`b`

, and`c`

, which are defined and passed to the node.

Go back to the extension to check out more related nodes.

Efficiency Nodes for ComfyUI Version 2.0+

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