Eri Yoshida to play for the of the Kansai Independent Baseball League. Yoshida made her professional baseball debut at the Osaka Dome in the opening game of the Kansai Independent Baseball League on March 26, 2009 in front of 11,592 fans. She faced two batters, walking the first and striking out the second in a 5–0 win over the . She appeared in 11 games for the Kobe 9 Cruise and moved on after the season to focus on advancing up the pro ranks. She appeared in a one-inning battle against the top hitters of the Hiroshima Carp on November 24, 2009.
Yoshida Mitsuyoshi Yoshida Mitsuyoshi , also known as Yoshida Kōyū, was a Japanese mathematician in the Edo period. His popular and widely disseminated published work made him the most well known writer about mathematics in his lifetime. He was a student of Kambei Mori (also known as Mōri Shigeyoshi). Along with Imamura Chishō and Takahara Kisshu, Yoshida became known to his contemporaries as one of "the Three Arithmeticians." Yoshida was the author of the oldest extant Japanese mathematical text. The 1627 work was named "Jinkōki". The work dealt with the subject of soroban arithmetic, including square and cube root operations. In a