这一进阶小节仅向会员开放。
升级会员6.8会员
6.8 基底延伸与基变换
用基底存在性、替换定理与基变换矩阵，严谨比较不同坐标系统。
本单元重点词汇
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用基底存在性、替换定理与基变换矩阵，严谨比较不同坐标系统。
这一进阶小节仅向会员开放。
升级会员Core notes stay free. Advanced exercises, video explanations, and premium exports are available through paid plans.