Using "nchoosek(n,k)", create a row vector containing all the binomial coefficients for n=4 and display this vector. Repeat for n=10

Question

Kieran Conway 2017-3-23

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/331561-using-nchoosek-n-k-create-a-row-vector-containing-all-the-binomial-coefficients-for-n-4-and-disp

评论： LAURENCE ALVEY 2022-1-3

I have tried applying "v=1:4" & then "A=nchoosek(v,3)" as well as "A=nchoosek(v,4)". However, not to sure what I'm looking for

2 个评论
显示无隐藏无

James Tursa 2017-3-23

What have you done so far? Please make an attempt and then ask specific questions about where you are having problems with your code. Then we can help you.

James Tursa 2017-3-23

编辑：James Tursa 2017-3-23

The instructions say that n=4, and n is the first argument in nchoosek(n,k). So I would expect that you would be using nchoosek(4,k). Then it is just a matter of what k values to use, and how to form everything into a row vector. If n=4, do you know what are all the valid values for k to get the binomial coefficients? And do you know how to form a row vector out of a bunch of numbers?

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Arvind Narayanan 2017-3-28

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/331561-using-nchoosek-n-k-create-a-row-vector-containing-all-the-binomial-coefficients-for-n-4-and-disp#answer_260631

编辑：Arvind Narayanan 2017-3-28

According to the binomial theorem, the coefficient of every term of a polynomial (x+y)^n can be represented as

nCk*x^(n-k)*y^k

Now, I understand you want to make a row vector with the coefficients of the polynomial for n=4 and n=10 respectively. You can use something like this:

A=[];
n=4;
% n=10;
for i=0:1:n
    A=[A,nchoosek(n,i)];
end

Refer this: Binomial Theorem

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

LAURENCE ALVEY 2022-1-3

GNU OCTAVE has a a function: bincoeffs, which vectorizes nchoosek.

请先登录，再进行评论。

Using "nchoosek(n,k)", create a row vector containing all the binomial coefficients for n=4 and display this vector. Repeat for n=10

2 个评论
显示无隐藏无

回答（1 个）

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

另请参阅

类别

标签

Community Treasure Hunt

Using "nchoosek(n,k)", create a row vector containing all the binomial coefficients for n=4 and display this vector. Repeat for n=10

2 个评论 显示 无隐藏 无

回答（1 个）

1 个评论 显示 -1更早的评论隐藏 -1更早的评论

另请参阅

类别

标签

Community Treasure Hunt

WeChat

2 个评论
显示无隐藏无

1 个评论
显示 -1更早的评论隐藏 -1更早的评论