From 303c3d487ddcc4901193f44e9a16156fb129354d Mon Sep 17 00:00:00 2001 From: Siddhanta Mishra <73783282+sidamishra@users.noreply.github.com> Date: Fri, 20 Mar 2026 22:05:16 -0400 Subject: [PATCH 1/2] fix: present tense Present tense to be consistent with the rest of the recap. --- src/cross.typ | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/cross.typ b/src/cross.typ index 7a5bc7c..9ecfbd3 100644 --- a/src/cross.typ +++ b/src/cross.typ @@ -359,9 +359,9 @@ A brief summary of the last few chapters. - Both are used in the theory of planes: - We use the dot product to show that the normal vector - to the plane $a x + b y + c z = d$ was the vector $vec(a,b,c)$. + to the plane $a x + b y + c z = d$ is the vector $vec(a,b,c)$. - We use the projection from the dot product to find the distance from a point to a plane. - - Given three points on a plane, the cross product let us find the normal vector. + - Given three points on a plane, the cross product lets us find the normal vector. See also @table-vector-objects, which summarizes some of the vectors we've seen in applications. From c54d37bbbb44a2a7b82fe10a62134886703dd3ab Mon Sep 17 00:00:00 2001 From: Siddhanta Mishra <73783282+sidamishra@users.noreply.github.com> Date: Fri, 20 Mar 2026 22:11:32 -0400 Subject: [PATCH 2/2] fix: periods in examples and boldface vector --- src/matrix.typ | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/src/matrix.typ b/src/matrix.typ index c1d5519..a12b97b 100644 --- a/src/matrix.typ +++ b/src/matrix.typ @@ -29,10 +29,10 @@ I wouldn't worry too much about the axioms until later; for now, read the exampl #example(title: [Examples of linear transformations])[ The following are all linear transformations from $RR^2$ to $RR^2$: - - The constant function where $T(bf(v)) = bf(0)$ for every vector $v$ + - The constant function where $T(bf(v)) = bf(0)$ for every vector $bf(v)$. - Projection onto the $x$-axis: $T(vec(x,y)) = vec(x,0)$. - - Rotation by an angle - - Reflection across a line + - Rotation by an angle. + - Reflection across a line. - Projection onto the line $y = x$. - Multiplication by any $2 times 2$ matrix, e.g. the formula $ T(vec(x,y)) = vec(x+2y,3x+4y) $