Here is a list of all namespace functions with links to the namespace documentation for each function:

tan() : drake::ad, drake::symbolic
tanh() : drake::ad, drake::symbolic
TaylorExpand() : drake::symbolic
temp_directory() : drake
to_conjunction() : drake::symbolic
to_disjunction() : drake::symbolic
to_equal_to() : drake::symbolic
to_false() : drake::symbolic
to_forall() : drake::symbolic
to_greater_than() : drake::symbolic
to_greater_than_or_equal_to() : drake::symbolic
to_int() : drake::manipulation::franka_panda
to_isnan() : drake::symbolic
to_less_than() : drake::symbolic
to_less_than_or_equal_to() : drake::symbolic
to_nary() : drake::symbolic
to_negation() : drake::symbolic
to_not_equal_to() : drake::symbolic
to_positive_semidefinite() : drake::symbolic
to_relational() : drake::symbolic
to_string() : drake::geometry::render, drake::geometry, drake::math, drake::multibody, drake::perception::pc_flags, drake::solvers, drake::symbolic, drake::systems::sensors, drake, drake::yaml
to_true() : drake::symbolic
to_variable() : drake::symbolic
ToDistribution() : drake::schema
ToDistributionVector() : drake::schema
ToLatex() : drake::symbolic
ToLowerTriangularColumnsFromMatrix() : drake::math
ToPlaneDegree() : drake::geometry::optimization
ToPlaneOrder() : drake::geometry::optimization
ToPythonKwargs() : drake::common
ToPythonTuple() : drake::common
torque_enabled() : drake::manipulation::kuka_iiwa
ToSymbolic() : drake::schema
ToSymmetricMatrixFromLowerTriangularColumns() : drake::math
transposeGrad() : drake::math