资讯

Éducation Plus on MSN1 天
The Ray, It's Easier Than You Think... Find Out How!
Looking to find the radius of a circle, a sphere, or even a cone? Discover quick and easy formulas to calculate everything!
BBC1 年
How to show the surface area of a sphere is 4πr²
WHAT YOU NEED: an orange, pencil and paper. The orange should be as round as possible, so the peel represents the surface area of a sphere. STEP 2: Repeat this 3 more times. You should now have 4 ...
Simon Fraser University8 年
Sphere Function
The Sphere function has d local minima except for the global one. It is continuous, convex and unimodal. The plot shows its two-dimensional form. The function is usually evaluated on the hypercube x i ...