Once Zhao Yi had the basic idea and a flash of inspiration, he used the Research Coin to tap into the Causality thought mode, and quickly found a breakthrough and direction in his research.
Knowledge constantly sprang to his mind as he wrote letters, functions, and constructed images on paper.
This was highly challenging research.
Euler's Identity itself was complex and the variable s being defined as a complex variable brought in complex mathematics, making every step taxing.
But Zhao Yi was different.
With the help of "Causality Law" and "Supervision Law," he bypassed complicated steps and could even directly arrive at conclusions. Since he was conducting independent research, the "Connection Law" supplemented his thinking only when there was no clear direction. The content served to refine his train of thought.
Even with the assistance of various abilities, it was unrealistic to achieve the objectives all at once.