The Monk in the Temple is more or less a poem in Xu Ziyun's arithmetic.

The full text is: the majestic ancient temple is in the mountains, and I wonder how many monks there are. 364 bowls, the monks have just used up. Three people eat a bowl of rice and four people eat a bowl of soup. Excuse me, sir, how many monks are there in the temple? Can be calculated by equation.

An equation refers to an equation containing unknowns. It is an equation that represents the equal relationship between two mathematical expressions (such as two numbers, functions, quantities and operations), and the value of the unknown quantity that makes the equation hold is called "solution" or "root". The process of finding the solution of the equation is called "solving the equation".