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{{redirect|Adjoint matrix|the transpose of cofactor|Adjugate matrix}}
In [[mathematics]], the '''conjugate transpose''', also known as the '''Hermitian transpose''', of an <math>m \times n</math> [[Complex number|complex]] [[matrix (mathematics)|matrix]] <math>\boldsymbol{A}</math> is an <math>n \times m</math> matrix obtained by [[transpose|transposing]] <math>\boldsymbol{A}</math> and applying [[complex conjugate]] on each entry (the complex conjugate of <math>a+ib</math> being <math>a-ib</math>, for real numbers <math>a</math> and <math>b</math>). It is often denoted as <math>\boldsymbol{A}^\mathrm{H}</math> or <math>\boldsymbol{A}^*</math><ref name=":1">{{Cite web|last=Weisstein|first=Eric W.|title=Conjugate Transpose|url=https://mathworld.wolfram.com/ConjugateTranspose.html|access-date=2020-09-08|website=mathworld.wolfram.com|language=en}}</ref><ref name=":2">{{Cite web|title=conjugate transpose|url=https://planetmath.org/ConjugateTranspose|access-date=2020-09-08|website=planetmath.org}}</ref>
or
<math>\boldsymbol{A}'</math>.<ref>
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