Here are the same Schrödinger equations with different forms of "d" - the first one is a curved form.
The question of this thread is: Do you pronounce this curved form of "d" still as /d/?
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You might be interested in a document on how to read mathematical expressions.
They suggest it is to be read as d or that you should read the whole thing out in words, the partial derivative of ... with respect to ...
Although the document comes from a French institution I believe it represents the practice of English speaking mathematicians.