Tagged Questions
1
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1answer
19 views
solving for one variable in terms of others
A question from Steward's Precalculus textbook 5th, Pg 55,
the original formula is $$h=\frac{1}{2}gt^2+V_0t$$
the question asks to write the formula in terms of $t$, the answer is ...
0
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1answer
25 views
Quadratic fit check
I've performed LS fit to data in order to fit the following quadratic function:
$$f(x,y) = A~x^2 + B~y^2 + C~x~y + D~x+E~y +F$$
Now, I would like to check that the fitted function looks like a ...
2
votes
4answers
59 views
Find $a$ and $b$ in the given cubic polynomial
Find $a$ and $b$ such that $x+1$ and $x+2$ are factors of the polynomials $x^3+ax^2-bx+10$.
Here I am not sure that how can I obtain the value of $a$ and $b$, I tried to multiply $x+1$ and $x+2$ to ...
1
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4answers
91 views
Derive the Quadratic Equation
Find the Quadratic Equation whose roots are $2+\sqrt3$ and $2-\sqrt3$.
Some basics:
The general form of a Quadratic Equation is $ax^2+bx+c=0$
In Quadratic Equation, $ax^2+bx+c=0$, if ...
4
votes
1answer
98 views
Partitioning polynomials in $\mathbb{Z}[x,y]$ by the primes they represent
Suppose you have a set $S\subset\mathbb{Z}[x,y].$ How can one efficiently partition the polynomials into sets such that the primes represented by the polynomials in any given set are identical? For ...
1
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1answer
193 views
Finding the minimum value of a quadratic within a range
Given any quadratic equation of the form $y=ax^2+bx+c$, I want to find the minimum value for a specific range of $x$.
My programmer brain can do it in a branchy, algorithmic way as follows, but is ...
