QR分解
eNo9kMFOwkAQhl9lH8CLV28+QvsGBDXhADXKyVNnMQRotQnYVKVKqlWUSsFotDaIBx9lum098QrOlupls/PP/N/+s4oqOu18fLtadJBPsXWHrQXyG3m2AoQ35AMEA+EYdciN5y2mqGxnt6rV97XDWrOmNTakslepNrWD2lFFKqtFF+EBYUaWOvt2WIOJcJR7pug4bBt5n3RWZ+mTlw1fk9gvOwojFysNSdRLom4+7pdNlRXIMHs8QYjosk6NECCn4L3co+4FwkCO6YCwRBjJCHCF0C66Dil0yayljEALQRt1XlhCCaESJn/YmYjolUBMz4VbkLlBw7Tq/0D2fimujdTVxdxKYjP5cIRt/XgmwYsBSwbglCRIPr+yM4LYyM01p4yngxjGqdsVul96IUztOZVESF9sKjcRfIQxAienoq5FMYoz/7T4kAkCvXUv1ynIvyz7JA4=