An aricraft is flying at 450 ft/s with an elevation of 155 ft from the ground, on a straight-line path that will take it directly over an anti-aircraft gu...

Find two numbers that add up to 8 and multiply to 20. Only the complex number "i" (imaginary number) is allowed other than the real numbers. But you do no...

I have a double summation which I am trying to compute as follows $$\sum_i^3\sum_j^3 h_{i,j} w_{i,j}$$ which I am trying to implement in MATLAB.. My appli...

I'm taking a machine learning course. The professor has a model for linear regression. Where $h_\theta$ is the hypothesis (proposed model. linear reg...

Is the bipartite maximal matching problem is NP hard or NP complete or neither? If it's either can someone cite a paper saying so? Also, if its not t...

Let $B_t$ be a brownian motion, $\delta \in \mathbb{R}$. I have to prove if $e^{\delta B_t - \frac{\delta^2 t}{2}}$ is also a brownian motion. I can'...

In a circle, each $x$-value can be mapped to one $y$-value above and one $y$-value below the $x$-axis. Each $y$-value can be mapped to the one $x$-values ...

(It's mostly a calculus question and has little to do with optics.) I'm reading a book on Computer Graphics, Realistic Image Synthesis Using Pho...

I need to learn how to find the definite integral of the square root of a polynomial such as: $$\sqrt{36x + 1}$$ or $$\sqrt{2x^2 + 3x + 7} $$ EDIT: It...

I have formed the above problem, which involves a mix between element-wise (Hadamard) multiplication (indicated by ".*") and ordinary matrix mul...