Kiyoshi Ito passed away on November 10th. If you've worked for financial products, especially derivatives, you could have heard his name at least. He found out the Ito's lemma. The lemma was based on the Black-Sholes Formula. The formula was caused the largest revolution on the financial business. We're living now and we'll also live in the uncertain futures. Especially, the financial investors and brokers had traded with their experiences, senses and simple graphs or charts only. However, the formula brought the science and engineering knowledges to the financial trading.I hoped he could win the Nobel Prize in Economics as the first Japanese. It's really a shame...
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