In Selected Poems of Greece, the epitaph of Diefan, an ancient Greek mathematician, is included. He posed a question for future generations. How?

See if it's this:

The date of birth of Diophantine cannot be verified, but there is a classic mathematical topic on his tombstone:

"Surprisingly, Diophantu was buried in the grave, which faithfully recorded the road he experienced.

God gave one sixth of childhood,

After another twelfth, beards grew on both cheeks.

In another seventh, light the wedding candle.

Five years later, the God-given son,

Poor Xin Xin-er, half her father's age, walked into the cold grave.

Sadness can only be made up by studying number theory, and after another four years, he has also completed the journey of life.

Finally bid farewell to mathematics and passed away.

Diophantus

Related problems

1. Life of Diophantine:

Solution: x-[(1÷ 6) x+(1÷12) x+(1÷ 7) x+5+(1÷ 2).

x-[ 1/6x+ 1/ 12x+ 1/7x+5+0.5x+4]= 0

x-[25/28x+5+4]=0

x-25/28x-9=0

x-25/28x=9

3/28x=9

x=84

A: It can be seen that Diophantu lived to be 84 years old.

2. How old did Diophantu become a father?

84× (1÷ 6+1÷12+1÷ 7)+5 = 38 (years old)

A: Diophantu became a father at the age of 38.

3. Diefantu's son died of age:

84-4=80 years old

He was 80 years old when his son died.