writing matrix with hat in mathmode
1,104
It depends on the meaning of what you want to write. This is a matter of pure semantics. You have two options:
- If the « hat » means « matrix M », then the hat is not part of the name of the matrix. It just says that M is a matrix. In this case, you should use
\hat{\mathbf{M}}
. - However, if you call the matrix « M̂ », that is, the « hat » is actually a part of the name, then you should use
\mathbf{\hat{M}}
.
To sum up: if the « hat » is part of the name, make it bold, else make it normal.
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Author by
user31177
Updated on May 20, 2020Comments
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user31177 over 3 years
I want to know the difference between:
$\hat{\mathbf{M}}$ % hat is not bold and $\mathbf{\hat{M}}$ % hat is bold
What is correct way (bold/normal). If both what are cases when I should use bold and when normal hat.
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egreg over 7 yearsIt depends on whether you want the hat to be bold or not. However the first should be
$\hat{\mathbf{M}}$
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user31177 over 7 years@Mico, I wanted to know when should I use bold hat and when normal hat.
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Mico over 7 yearsWhether or not the hat symbol is supposed to be bold as well really depends on what
M
,\hat{M}
,\mathbf{M}
, and thus also\hat{\mathbf{M}}
and\mathbf{\hat{M}}
are supposed to mean.
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