Jyesthadeva was a prominent Indian mathematician and astronomer from the 16th century, known for his contributions to the field of mathematics. He was a key figure in the Kerala School of Astronomy and Mathematics, which made significant advancements in calculus and trigonometry long before these concepts became widely recognized in Europe. His most notable work is the Yuktibhāṣā, a treatise that explains mathematical concepts using a systematic approach. Jyesthadeva's writings emphasized the importance of reasoning and proof in mathematics, influencing future generations of mathematicians in India and beyond.