#include "cplx.h"
...
double _Complex rnw(double P[], double C[], double x)
{
struct cplx f[20000], an[20000], rn[20000], fnmax, f1, rn1;
...
for (n=nmax; n>=2; n--) {
an[n-1]=cdiv( cdiff (f[n-1],f[n]),csum(f[n-1],f[n]) );
rn[n-1]=cmult( cplxexp( cmult(makecplx(0,-2.*C[5]*d[n-1]),f[n-1])), cdiv( csum(rn[n],an[n-1]),csum(cmult(rn[n],an[n-1]),makecplx(1.0,0) )));
}
return rn[1];
}It is outside, the indentation is a bit confusing.jim mcnamara said:Plus your return statement is in the middle of a for(...) loop.
Well, things like 'unsigned int numberofwhatever=10; for(int i=0; i<numberofwhatever; i++)" (where the first one is hidden somewhere in an object in a completely different file) give a warning about the comparison between signed and unsigned integers (depends a bit on the compiler), but it does not 'work by accident', it just works.Compile to show all warnings, a correct program NEVER compiles with warnings. Even if you can run a program compiled with warnings and it appears to work. This is called 'programming by accident'.
To create a complex number in C, you can use the complex data type. Use the creal() and cimag() functions to assign real and imaginary values respectively, and then use the complex() function to combine them into a single complex number. Finally, use the return statement to return the complex number from your function.
Yes, a function can return both the real and imaginary parts of a complex number separately. You can use the creal() and cimag() functions to access the real and imaginary parts, respectively, of a complex number. These functions take a complex number as an argument and return a double value.
To declare a function that returns a complex number in C, you can use the complex data type as the return type of the function. For example, your function declaration could look like this: complex myFunction(); This tells the compiler that your function will return a complex number when called.
Yes, it is possible to pass a complex number as an argument to a function and have the function return a modified complex number. You can pass a complex number as an argument by using the complex data type in the function's parameter list. The function can then modify the complex number and return the modified version using the return statement.
printf() function to print a complex number returned by a function?Yes, you can use the printf() function to print a complex number returned by a function. To do this, you will need to use the %lf format specifier to print the real and imaginary parts of the complex number separately. For example, if your complex number is stored in a variable called myNum, you could print it using printf("%lf + %lfi", creal(myNum), cimag(myNum)).