The phrase "in category of" is correct and usable in written English.
You can use this phrase when you are grouping or classifying items. For example, "This book belongs in the category of non-fiction."
The mentioned equation has been classified in category of advection equations.
Journal of Alternative and Complementary Medicine published the most articles, followed by American Journal of Chinese Medicine and Acupuncture & Electro-Therapeutics Research wereh were listed in category of integrative & complementary medicine.
Screening of "Surveillance 1"; third prize in category of Experimental Video.
Complex network falls in category of graph theory which initially focused on simple graphs.
Views that, like the Rylean and Fregean approaches, distinguish categories by way of language, are sometimes criticized as capable only of noting differences in category of certain linguistic expressions.
If the KNN classification output is in category of "mode2," it means the patient may be experiencing emotional stress and needs to transmit classifier data (HF, LF, VLF) for further classification and analysis at the receiver side.
"We are in categories of the industry that are not characterized by strong growth".
Sentences should be imposed by judges in individual cases, not by legislators in categories of cases.
The judges evaluated the projects in categories of usability, manufacturability, safety, prototype effectiveness, and presentation effectiveness.
They are grouped in categories of gestural, geometric, reductive, and "eccentric" abstraction, supplemented with fabric arts, ceramics, and decoration.
Each contains about 200 snappy reviews, averaging 320 words, in categories of fiction, nonfiction, poetry, mystery, etc.
