added linalg docs (#1043)

CMakeLists.txt

@@ -352,7 +352,6 @@ message(STATUS "BUILD_SHARED_LIBS:           ${BUILD_SHARED_LIBS}")
 message(STATUS " ")
 message(STATUS "MANIFOLD_PAR:                ${MANIFOLD_PAR}")
 message(STATUS "MANIFOLD_CROSS_SECTION:      ${MANIFOLD_CROSS_SECTION}")
-message(STATUS "MANIFOLD_FLAGS:              ${MANIFOLD_FLAGS}")
 message(STATUS "MANIFOLD_EXPORT:             ${MANIFOLD_EXPORT}")
 message(STATUS "MANIFOLD_TEST:               ${MANIFOLD_TEST}")
 message(STATUS "MANIFOLD_FUZZ:               ${MANIFOLD_FUZZ}")
@@ -361,6 +360,7 @@ message(STATUS "MANIFOLD_CBIND:              ${MANIFOLD_CBIND}")
 message(STATUS "MANIFOLD_PYBIND:             ${MANIFOLD_PYBIND}")
 message(STATUS "MANIFOLD_JSBIND:             ${MANIFOLD_JSBIND}")
 message(STATUS "MANIFOLD_EXCEPTIONS:         ${MANIFOLD_EXCEPTIONS}")
+message(STATUS "MANIFOLD_FLAGS:              ${MANIFOLD_FLAGS}")
 message(STATUS " ")
 
 # If it's an EMSCRIPTEN build, we're done

include/manifold/common.h

@@ -25,9 +25,7 @@ namespace manifold {
  * @brief Simple math operations.
  * */
 
-/** @addtogroup Scalar
- * @ingroup Math
- *  @brief Simple scalar operations.
+/** @addtogroup LinAlg
  *  @{
  */
 namespace la = linalg;
@@ -47,6 +45,13 @@ using ivec2 = la::vec<int, 2>;
 using ivec3 = la::vec<int, 3>;
 using ivec4 = la::vec<int, 4>;
 using quat = la::vec<double, 4>;
+/** @} */
+
+/** @addtogroup Scalar
+ * @ingroup Math
+ *  @brief Simple scalar operations.
+ *  @{
+ */
 
 constexpr double kPi = 3.14159265358979323846264338327950288;
 constexpr double kTwoPi = 6.28318530717958647692528676655900576;