Chameleon
发表于 2025-3-25 05:37:34
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ingenue
发表于 2025-3-25 07:42:28
Determinants,at .; in other words, if two diagonal square matrices are equivalent, then the product of the diagonal entries of one is the same as the product of the diagonal entries of the other. Once this theorem is proved, we will speak of . determinant of a square matrix, not . determinant.
Gudgeon
发表于 2025-3-25 15:13:55
Matrices with Rational Number Entries,“linear substitution” is extended-what was called a linear substitution before is still a linear substitution, but new linear substitutions are allowed. The operation of composition of linear substitutions is defined in the same way as before, and it corresponds in the same way as before to an opera
abnegate
发表于 2025-3-25 17:24:35
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思想上升
发表于 2025-3-25 21:54:05
Matrices with Polynomial Entries,(Here, and in the remainder of the book, “number” will mean “rational number” unless otherwise stated.) The .’s are called the . of the polynomial. The . of a polynomial is the term .... with .. ≠ 0 for which . is as large as possible. Normally one assumes .. ≠ 0, so .... is the leading term. The .
喧闹
发表于 2025-3-26 03:12:17
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可卡
发表于 2025-3-26 05:52:56
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心痛
发表于 2025-3-26 10:41:53
e success of contemporary reperfusion strategies, many patients with evolving myocardial infarction sustain extensive myocyte necrosis, resulting in heart failure, arrhythmia, and death. Although early restoration of blood flow to ischemic myocardium reduces infarct size, many patients with acute my
说明
发表于 2025-3-26 15:51:40
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Incisor
发表于 2025-3-26 20:50:17
Harold M. Edwards with negative inotropic drugs might alleviate symptoms in many of these patients; however, a certain number might remain refractory to drug therapy. This subset of patients could represent 5–10% of the total population with this disease (.). Surgical myectomy has been shown to reduce outflow gradie