Unknown error in the code.

[mozart23]

This code is giving the error:

Pl.cpp:39:7: error: non-ASCII characters are not allowed outside of literals and identifiers
cout<<‘enter l : ‘
Pl.cpp:39:10: error: use of undeclared identifier 'enter'
cout<<‘enter l : ‘
^
same for all cout.
I am using text editor in Yosemite.

#include<iostream>
#include<cmath>
using namespace std;

int factorial(int n)
{
int f = 1;

for (int i = n; i > 0; i--)
{
f = f * i;
}

return f;
}

float Pl1(int a, int b, float c)
{
float d,e;
if (a-b==1||a==b)

{

e=factorial(2*b -1)*pow((1 - pow(c,2)),b/2);
return e;

}

d = c*(2*a - 1)*Pl1(a-1, b, c) + (a + b - 1)*Pl1(a-2, b, c);
return d;

}


int main()
{
int l,m;
float theta,P,Y;
cout<<“enter l :”
cin >> l;
cout << “ enter m : ”
cin >> m;
cout << “ enter theta : ”;
cin >> theta;

P = Pl1(l,m,theta);
cout<<“Value of legendre polynomial is : ” <<P;

Y = pow(-1,m) * (pow(((2*l + 1)*factorial(l - m))/(4*3.14*factorial(l+m)) , 1/2)) * P * cos(theta);
cout<<“Value of Y is : ”<<Y;

}

[MiiNiPaa]

cout<<“enter l :”
//    ↑         ↑
//What are those? 

String literals are encased in double quotes " , not in any other character.

[mozart23]

I am a beginner. can you tell me how to correct this.

[MiiNiPaa]

Replace those non-ascii characters with double quotes.
Like:

cout<<"enter l :"
//    ↑         ↑
//Note: proper quotes 

[tipaye]

I'm guessing you did copy & paste with this. If so, you didn't get pure text in your copy & paste operation, you've got some non ascii characters in there. What looks like double quotes - " - may not actually be. If you really can't tell the difference (perhaps your editor's fault), then delete those lines with the problem, and type them in manually yourself.