# Solving non-numeric argument error in fun(left, right) binary operator

When working with binary operators in programming languages, you may encounter the non-numeric argument error, which can halt your program's execution. This error message can be frustrating if you don't understand the root cause of the problem. In this guide, we will explore the causes of the non-numeric argument error and provide a step-by-step solution to fix it.

## What is the `fun(left, right)` Binary Operator?

The `fun(left, right)` binary operator is a placeholder for any binary operator in a programming language. Common binary operators include addition, subtraction, multiplication, and division. The `fun(left, right)` operator takes two arguments, `left` and `right`, and performs a specified operation on them.

## What Causes the Non-Numeric Argument Error?

The non-numeric argument error occurs when you attempt to perform a binary operation on non-numeric values. For example, if you try to add a string and an integer using the `+` operator, you will receive the non-numeric argument error.

## How to Fix the Non-Numeric Argument Error

To fix the non-numeric argument error, you must ensure that both `left` and `right` arguments are numeric values. Here are the steps to fix the error:

1. Identify which binary operator is causing the error.
2. Check the data types of both `left` and `right` arguments.
3. Convert the non-numeric argument to a numeric value using a suitable function or method.
4. Perform the binary operation on the converted numeric values.

For example, let's say you have the following code:

``````a = "2"
b = 3
c = a + b
``````

This code will raise the non-numeric argument error because `a` is a string and `b` is an integer. To fix this error, you can convert `a` to an integer using the `int()` function:

``````a = "2"
b = 3
c = int(a) + b
``````

Now the code will execute without errors because `a` is converted to an integer before performing the addition operation.

## FAQ

### Q: What is a binary operator?

A: A binary operator is a mathematical or logical operation that takes two operands as input.

### Q: What is the `fun(left, right)` binary operator?

A: `fun(left, right)` is a placeholder for any binary operator in a programming language.

### Q: What causes the non-numeric argument error?

A: The non-numeric argument error occurs when you attempt to perform a binary operation on non-numeric values.

### Q: How do I fix the non-numeric argument error?

A: To fix the non-numeric argument error, you must ensure that both `left` and `right` arguments are numeric values. Convert the non-numeric argument to a numeric value using a suitable function or method.

### Q: What function can I use to convert a string to an integer?

A: You can use the `int()` function to convert a string to an integer in Python.

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