Previously, Korean singer K.will asked for a MV called "1 Need You". The girl wrote a mathematical formula "128 radical e980" on the blackboard for the hero to answer, but the hero couldn't figure it out after thinking hard. Then the girl picked up the brush and erased the first half of the formula, which became ILove You in English. This has become a famous mathematical formula. I love you.

2. The function image of x2+(y+3 √ x2) 2 =1is a love ~

Let's take a look at how Descartes, a famous mathematician, expressed his mathematical thoughts. Many people know that Descartes has been writing letters to his beloved princess since he returned to France. It's a pity that Descartes died after sending the thirteenth letter, which has only a short formula: r=a( 1-sinθ). The king didn't understand. He thought they didn't always talk about love, so he called all the mathematicians in the city to the palace, but there was none.

He couldn't bear to see his beloved daughter moping all day, so he gave this letter to Christine who had been moping all the time. As soon as the princess saw it, she immediately understood the intention of her lover. She immediately set out to draw a graph of the equation. She was very happy when she saw the figure. She knows that her lover still loves her. It turns out that the graph of the equation is a heart. This is also the famous "heart line".