Medieval Era: I Use Mathematics to Become Gods

When Shen Yan traveled to the Middle Ages, he was being taken to the stake. His charge was absurd: he said that the diagonals of a square could not be completely measured in whole-number proportions. In this world, mathematics is called sacred numbers by the church, monopolized by the Surveyor's Guild, and used by nobles to measure land and collect taxes. Everyone believes that everything in the world can be accurately measured by the ruler given by God. Until Shen Yan wrote the first rebuttal in the trial hall. He proved that square root two is an irrational number. From that day on, a crack opened in the old world. He used the Pythagorean theorem to correct the cathedral that was about to collapse, used similar triangles to measure the tower, used pi approximation to shatter the oracle, used congruence to debunk the Chamber of Commerce's fake accounts, used probability to reverse the gambling of the nobles, used the system of equations to recalculate the kingdom's tax system, used parabolas to rewrite the battlefield range, and used statistics to judge the church's miracles. Some call him a genius. Some called him a heretic. Some people want to enshrine him on the altar. Someone wanted to send him back to the stake. And Shen Yan only does one thing: Drag all unproven authorities to the blackboard. He said: "Starting today, truth pays." This is not a story about modern people becoming kings by reciting poems and creating gunpowder. This is the story of a doctor of mathematics who used the entire history of human mathematics to leverage the divine power, royal power, nobility and war order in the medieval world.