Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
识别矩阵 {{ 1, 2, 3 }, {2, 4, 6 }, {1, 1, 1 }} 的秩。
识别矩阵 {{ 1, 2, 3 }, {2, 4, 6 }, {1, 1, 1 }} 的秩。
Natural Language
Math Input
Extended Keyboard
