This geometric fact when you represent it as equations, you would get the form that I showed which is - grad of f is λ times grad of h.
यह ज्यामितीय तथ्य जब आप इसका समीकरणों प्रतिनिधित्व करते हैं, आपको वह फॉर्म मिलेगा जो मैंने दिखाया था जो है - grad of f is λ is grad oh h times।