r = R / (1 + tan(theta/2))
所有跟帖:
• 你看看單位元裏放3個小圓的題,相當於120度的扇形放一個圓 -yma16- ♂ (76 bytes) () 01/17/2022 postreply 09:39:50
• should be R ( 1 + sec(theta/2)), if theta = 120deg, r = 0.464 R -布衣之才- ♂ (0 bytes) () 01/17/2022 postreply 11:36:06
• 你看看單位元裏放3個小圓的題,相當於120度的扇形放一個圓 -yma16- ♂ (76 bytes) () 01/17/2022 postreply 09:39:50
• should be R ( 1 + sec(theta/2)), if theta = 120deg, r = 0.464 R -布衣之才- ♂ (0 bytes) () 01/17/2022 postreply 11:36:06
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