वे गैर-शून्य सदिश (non-zero vectors) जिनकी दिशा एक वर्ग आव्यूह (square matrix) के साथ रैखिक रूपांतरण (linear transformation) लागू करने के बाद भी अपरिवर्तित रहती है, कहलाते हैं:

The 'Drain of Wealth' theory was propounded by which Indian nationalist leader?

Which event is considered the turning point in Mahatma Gandhi's leadership in the Indian independence movement?

Which African leader is known for his non-violent opposition to colonial rule?