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So I was recently looking for free alternatives to mtpro2 and newtx caught my attention. I decided to run newtxmath package with the Computer Modern integrals via the option cmintegrals, but unfortunately running through both MikTeX and Overleaf (pdfLaTeX) the following

\usepackage{amsmath}
\usepackage[cmintegrals]{newtxmath}

\[ \oint \mathbf{E} \cdot d \mathbf{a} = \int \rho \, dv \]

results in

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which are the same integral signs as compiling without cmintegrals. Does someone know what could be causing this strange behavior and how could I fix it?

ErickShock
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    Welcome to TeX.SE. From p. 6 of the manual of the newtx package: "[A]s of version 1.5, [the cmintegrals] option does nothing, as the new default is slanted integral." Put differently, you're getting the Computer Modern-type slanted integral symbols whether or not you specify the option cmintegrals. (I believe the most recent version of the newtxmath package has version number. 1.553.) – Mico Apr 27 '19 at 06:56
  • @Mico thanks for your clarification! I found a workaround by loading esint after newtxmath. I still wish there was support for cmintegrals like in this post. – ErickShock Apr 28 '19 at 00:21
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    I'm voting to close this question because the question is solved of the OP migrating on other packages. – Sebastiano Aug 04 '19 at 12:14

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