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"""
Subtract two matrices using NumPy.
"""
import numpy as np
from typing import List, Union
import gradio as gr
from maths.matrices.utils import parse_matrix, format_output
Matrix = Union[List[List[float]], np.ndarray]
def matrix_subtract(matrix1: Matrix, matrix2: Matrix) -> np.ndarray:
m1 = np.array(matrix1)
m2 = np.array(matrix2)
if m1.shape != m2.shape:
raise ValueError("Matrices must have the same dimensions for subtraction.")
return np.subtract(m1, m2)
matrix_subtract_interface = gr.Interface(
fn=lambda m1_str, m2_str: format_output(matrix_subtract(parse_matrix(m1_str), parse_matrix(m2_str))),
inputs=[
gr.Textbox(label="Matrix 1 (Minuend)", placeholder="e.g., [[5,6],[7,8]]"),
gr.Textbox(label="Matrix 2 (Subtrahend)", placeholder="e.g., [[1,2],[3,4]]")
],
outputs=gr.Textbox(label="Resulting Matrix"),
title="Matrix Subtraction",
description="Subtracts the second matrix from the first. Both matrices must have the same dimensions. Example: Matrix 1: [[5,6],[7,8]], Matrix 2: [[1,2],[3,4]] => Result: [[4,4],[4,4]]",
examples=[
["[[5,6],[7,8]]", "[[1,2],[3,4]]"],
["5,6;7,8", "1,2;3,4"]
]
)
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