On Tuesday, January 16, 2018 at 5:10:14 PM UTC+5:30, Rustom Mody wrote:
> On Sunday, January 14, 2018 at 3:28:02 AM UTC+5:30, bo...@questa.la.so wrote:
> > Rustom Mody writes:
> >
> > > Specifically and for starters, I want a numpy array — lets say 2D to
> > > start with — to be displayed(displayable) as elegantly as sympy does
> > > to (its) matrices
> > ########################################################################
> > import numpy as np
> > from IPython.display import Latex
> >
> > def prmat(mat):
> > return (r'\begin{bmatrix}' +
> > r'\\'.join('&'.join('%f'%x for x in row) for row in mat) +
> > r'\end{bmatrix}'
> >
> > a = np.arange(12).reshape((3, 4))+1
> > display(Latex(prmat(a)))
> > ########################################################################
> > you could add optional arguments to modify the type of brackets and the
> > formatting string
>
> Thanks
>
> Well I had to tiny-tweak the code (import the display)
> ---------------
>
> import numpy as np
> from IPython.display import Latex, display
>
> def prmat(mat):
> return (r'\begin{bmatrix}' +
> r'\\'.join('&'.join('%f'%x for x in row) for row in mat) +
> r'\end{bmatrix}' )
>
> a = np.arange(12).reshape((3, 4))+1
> display(Latex(prmat(a)))
> ---------------
>
> After that it works… for 5 seconds!!
>
> ie it shows a nice centered matrix like a math-display in latex
> Then it goes away and I see a left aligned bunch of unicode boxes!
Inspired by this I tried this
It works… kinda… but the matrix columns dont align
def prmat(mat):
return (r'\begin{bmatrix}' +
r'\\'.join('&'.join('%d'%x for x in row) for row in mat) +
r'\end{bmatrix}' )
matprefix = """
<math>
<mrow>
<mo>[</mo>
<mtable>
"""
rowprefix = """ <mtr>
"""
elemfmt = """ <mn>%d</mn>
"""
rowsuffix = """ </mtr>
"""
matsuffix = """ </mtable>
<mo>]</mo>
</mrow>
</math>
"""
def prmht(mat):
return (matprefix + "".join(prmhtrow(r) for r in mat) + matsuffix)
def prmhtrow(row):
return rowprefix + "".join(elemfmt%x for x in row) + rowsuffix
display(HTML(prmht(a)))
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