https://cha-record.studio/2026/04/03/%ea%b3%a0%ea%b8%89%ec%88%98%ed%95%99i-1113%ea%b0%95-%ea%b5%90%ec%9e%ac%eb%8b%b5%ec%a7%80/ 2026-04-03T11:42:26Z Cha's Record ko [고급수학I] 11~13강 교재,답지 2026-04-03T11:32:53Z Blog https://cha-record.studio/2026/04/03/3trans/ 2026-04-03T11:27:27Z Cha's Record ko 3차원 선형변환 시뮬레이터 2026-04-03T10:59:11Z Blog