Select a piece of text with a cursor and call these functions as an add-in to enclose the text with special symbols. Text between $.$ is interpreted as an inline equation and between $$.$$ or \[.\] as a block equation in R Markdown.

rmd_equation_inline()

rmd_equation_block()

rmd_equation_block2()

See also

Other R Markdown formatting add-ins: format_rmd, rmd_code_block, rmd_list