Create an application for plotting function graphs. The application should include an indicator that lights up red when graph plotting is impossible. There should be an input field for entering functions. Users should have the ability to plot multiple function graphs simultaneously, each in different colors.

## Project Overview
Develop an application that enables users to create graphs of mathematical functions. The application should assist users by indicating when a graph cannot be plotted.

## UI/UX Design and Flow
- Implement an input field where users can enter functions (e.g., algebraic or trigonometric) for graphing.
- Include a button or interactive element to trigger the graph creation.
- Design the interface to allow users to plot multiple graphs, each in a different color.
- Use color-coding such as blue for the first function and red for the second.
- Clearly display a red indicator when graph plotting is not possible.

## Core Functionality and Logic
- Capture and validate user input functions to determine if they can be graphed.
- Implement logic to plot multiple functions in different colors on the same graph.
- Integrate an error-checking system that activates the red indicator if plotting fails.

## Best Practices
- Ensure the application is intuitive and user-friendly, with clear instructions and feedback.
- Optimize performance to handle multiple graph plots smoothly.
- Follow design conventions for color usage to distinguish multiple graphs clearly.

⁷приложение для построения нрафиков функций, должен быть индикатор невозможности построения, которы должен гореть красным если построение невозможно, также должно быть поле для ввода функции и возможность построения сращу несколько графиков функций разных цветов 

Q: Какой формат ввода функции вы хотите?
A: Например, алгебраическая функция или тригонометрическая функция.

Q: Какие цвета вы хотите использовать для разных графиков?
A: Например, синий для первой функции, красный для второй и т.д.