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Published on 2010-06-15T22:24:43Z
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This is a maths problem I am not exactly sure how to do. The vector is not aligned to an axis, so just rotating 90 degrees around x, y or z won't necessarily give me the other axes.
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i have this huge function and i am wondering how to make it recursive. i have the base case which should never come true, so it should always go to else and keep calling itself with the variable t increases. any help would be great
thanks
def draw(x, y, t, planets):
if 'Satellites' in planets["Moon"]:
…
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I'm trying to calculate the sunset / rise times using python based on the link provided below.
My results done through excel and python do not match the real values. Any ideas on what I could be doing wrong?
My Excel sheet can be found under .. http://transpotools.com/sun_time.xls
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Hi Guys,
I'm constructing a geolocation based application and I'm trying to figure out a way to make my application realise when a user is facing the direction of the given location (a particular long / lat co-ord). I've got the math figured, I just have the triangle to construct.
//UPDATE
So…
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so I'm trying to make a program that will output the sum, average, and smallest and largest values. I have everything basically figured out except the smallest and largest values are outputting 2147483647 and -2147483647, which I believe are the absolute smallest and largest values that Java will…
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I've heard many times that all programming is really a subset of math. Some suggest that OO, at its roots, is mathematically based. I don't get the connection. Aside from some obvious examples:
using induction to prove a recursive algorithm
formal correctness proofs
functional languages
lambda calculus
asymptotic…
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Hi,
I have this destructor that create error at runtime "vector iterator not dereferencable".
The gridMatrix is a std::vector<std::vector<std::vector<AtomsCell< Atom<T> * > * > * > * >
I added the typename and also the typedef but I still have the error.
I will move…
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I have this implementation of vector that I've been working on for a few days using examples from a textbook:
#include <iostream>
#include <string>
#include <cassert>
#include <algorithm>
#include <cstring>
// Vector.h
using namespace std;
template <class T>
class…
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I want to create a vector<vector<int>> where the outer vector is fixed (always containing the same vectors), but the inner vectors can be changed. For example:
int n = 2; //decided at runtime
assert(n>0);
vector<vector<int>> outer(n); //outer vector contains n empty vectors
outer…
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That's x \ y using mathematical notation. Suppose
x <- c(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,2,1,1,1,3)
y <- c(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1)
How can I get a vector with ALL the values in x that are not in y. i.e the result should be:
2,1,1,3
There is a similar question here…
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Assuming I have 2 STL vectors:
vector<int> a;
vector<int> b;
Let's also say the both have around 30 elements.
How do I add the vector b to the end of vector a?
The dirty way would be iterating through b and adding each element via push_back, though I wouldn't like to do that!
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