Finding the acute angle between the planes $x-3y+2z=14$ and $-x+y+z=10$
9293
Having a plane equation equaled to zero for calculating its angle with another plane
79292
How to calculate the intersection of two planes?
37985
Show that $|x|^2 = |y|^2$ with $A$ orthogonal and $Ax = \cos (θ)x − \sin (θ)y$, $Ay = \sin (θ)x + \cos (θ) y$
40212
roots of $f(z)=z^4+8z^3+3z^2+8z+3=0$ in the right half plane
102487
Find a vector equation for the line through the point $(a,b,c)$ which is normal to the plane $\cdots$
85718
Angle between two vectors matlab
18005
Angle notation for complex numbers in polar form
50277
Relationship between cosines of angles in 4 dimensions
112664
Find the equation of a plane containing a point and passing through a line
47342
Figure out if a fourth point resides within an angle created by three other points
59202
What is the angle between those two matrices over $\mathbb{C}$?
62036
Finding the number of non-negative integral solutions of $x + y + z = 10$
54929
Finding integer solutions for $6x+15y+20z=1$
90708
Comparing angles and working out the difference
133043
Find the equation of the plane passing through a point and a vector orthogonal
73538
solving $\cos z + \sin z = i$
60202
Find a plane that passes through a point and is perpendicular to 2 planes