Associated Legendre Polynomials (Graph)
Calculates and graphs a table of the associated Legendre polynomial Pnm(x).
There are multiple definitions of the Legendre associated polynomial.
(Type A) Used in Wolfram (type2), etc.
(Type B) Used in Maple and Wolfram (type3), etc.
(Type A) Used in Wolfram (type2), etc.
| \(\normalsize\\ \ P_n^m(x)= {\large \frac{(1+x)^{\frac{m}{2}}}{(1-x)^{\frac{m}{2}}} \frac{\ {}_{\small 2}F_{\small 1} (-n,n+1;1-m;\frac{1-x}{2})}{\Gamma(1-m)} } \\\) |
(Type B) Used in Maple and Wolfram (type3), etc.
| \(\normalsize\\ \ P_n^m(x)= {\large \frac{(x+1)^{\frac{m}{2}}}{(x-1)^{\frac{m}{2}}} \frac{\ {}_{\small 2}F_{\small 1} (-n,n+1;1-m;\frac{1-x}{2})}{\Gamma(1-m)} } \\ \) |
| \(\normalsize Associated\ Legendre\ polynomial\ P_n^m(x)\\ (1)\ (1-x^2)y''-2xy'+(n(n+1)-\frac{m^2}{1-x^2})y=0\\ \hspace{25px}y=P_n^m(x)\\ (2)\ {\large\int_{\tiny -1}^{\tiny 1}}P_n^m(x)P_{n'}^m(x)dx={\large\frac{2}{2n+1}\frac{(n+m)!}{(n-m)!}}\delta_{nn'}\\ (3)\ {\large\int_{\tiny -1}^{\tiny 1}}P_n^m(x)P_n^{m'}(x){\large\frac{dx}{1-x^2}}={\large\frac {(n+m)!}{m(n-m)!}}\delta_{mm'}\\ (4)\ P_n^{-m}(x)=(-1)^m{\large\frac{\Gamma(n-m+1)}{\Gamma(n+m+1)}}P_n^m(x)\\ (5)\ P_n^m(x)\ has\ several\ definitions.\\ \hspace{10px} type\ A:\ used\ by\ Wolfram(type2),\ etc\\ \hspace{15px} P_n^m(x)= {\large \frac{(1+x)^{\frac{m}{2}}}{(1-x)^{\frac{m}{2}}} \frac{\ {}_{\small 2}F_{\small 1} (-n,n+1;1-m;\frac{1-x}{2})}{\Gamma(1-m)} } \\ \hspace{10px} type\ B:\ Maple,\ Wolfram(type3),\ etc\\ \hspace{15px} P_n^m(x)= {\large \frac{(x+1)^{\frac{m}{2}}}{(x-1)^{\frac{m}{2}}} \frac{\ {}_{\small 2}F_{\small 1} (-n,n+1;1-m;\frac{1-x}{2})}{\Gamma(1-m)} } \\ \) |
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