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Aug
20
awarded  Autobiographer
Aug
10
accepted Getting the quadratic function given the vertex and one point.
Aug
10
comment Getting the quadratic function given the vertex and one point.
Excuse me, I'm not very familiar with the concept of derivatives yet. Of course, if I ignore the concept and solve the equations I will get the expected answer, but I'm not sure what you meant by $f'(x) = 2ax+b$
Aug
10
asked Getting the quadratic function given the vertex and one point.
Jul
24
awarded  Popular Question
Jul
13
accepted Finding the acute angle between the planes $x-3y+2z=14$ and $-x+y+z=10$
Jul
13
comment Finding the acute angle between the planes $x-3y+2z=14$ and $-x+y+z=10$
What do you think about @Timbuc's comment? About $180 - 107$?
Jul
13
accepted Having a plane equation equaled to zero for calculating its angle with another plane
Jul
13
asked Finding the acute angle between the planes $x-3y+2z=14$ and $-x+y+z=10$
Jul
13
accepted The intersection line between $2x-5y+z=0$ and $y=0$
Jul
13
asked Having a plane equation equaled to zero for calculating its angle with another plane
Jul
13
asked The intersection line between $2x-5y+z=0$ and $y=0$
Jul
13
accepted What does it matter that this angle is the smallest between these two vectors?
Jul
12
accepted Finding the intersection point between two lines using a matrix
Jul
12
comment Finding the intersection point between two lines using a matrix
Even if I only need two rows, if a third one happens to have an inconsistency, will that cause the equation to have no solution?
Jul
12
asked Finding the intersection point between two lines using a matrix
Jul
12
asked What does it matter that this angle is the smallest between these two vectors?
Jun
22
awarded  Notable Question
Jun
15
accepted Getting the number of significant digits in a multiplication/division.
Jun
15
asked Getting the number of significant digits in a multiplication/division.