拉胡尔·罗宾

Rahul Robin is an Indian mental calculator from the state of Jharkhand. Displaying a high quantitative and visualization ability from early childhood, Robin was highly accelerated in academic mathematics and used to be known for memorizing batches of phone numbers. When the pandemic hit, Robin began practicing mental calculation more formally, with a focus on oral calculations and multiplications, while also excelling at various online blitz mental arithmetic games.

Robin competed in Season 1 of Calculation League --- without significant prior experience in global calculation competitions --- and immediately demonstrated excellent visualization ability. Throughout the course of Season 1, he began developing his approach to more complex calculation questions, quickly improving along the way, and ultimately making the semi-finals and taking 4th place, a rank he retained in Seasons 2 and 3 after securing a variety of wins against highly experienced and accomplished mental calculators.

Robin prefers to do varied non-standard questions with mixed operations. He believes students of mental calculation should focus on practicing both oral and written questions and should emphasize versatility and improving skills in their weaker areas rather than repeated practice of specific tasks.

Robin holds a degree in civil engineering from NIT Jamshedpur. 

Calculation League Season 1 playoffs: Deep into overtime against Abhilakshya Arora.

除心算能力外,马克是拥有瓦伦西亚理工大学博士学位的数学家,其研究聚焦于随机微分方程与分数阶微分方程。28岁时,他成为西班牙应用数学学会"34岁以下数学家研究奖"最年轻的获奖者。马克热衷于探索心算与数学的关联,尤其当高深数学为看似简单的算术问题提供解法时,这种关联更令他着迷。

马克还热衷于体育运动,尤其钟爱欧洲足球,同时对语言学和研究珠算大师颇有研究。