complex_t BiquadBase::response (double normalizedFrequency) const
{
const double a0 = getA0 ();
const double a1 = getA1 ();
const double a2 = getA2 ();
const double b0 = getB0 ();
const double b1 = getB1 ();
const double b2 = getB2 ();
const double w = 2 * doublePi * normalizedFrequency;
const complex_t czn1 = std::polar (1., -w);
const complex_t czn2 = std::polar (1., -2 * w);
complex_t ch (1);
complex_t cbot (1);
complex_t ct (b0/a0);
complex_t cb (1);
ct = addmul (ct, b1/a0, czn1);
ct = addmul (ct, b2/a0, czn2);
cb = addmul (cb, a1/a0, czn1);
cb = addmul (cb, a2/a0, czn2);
ch *= ct;
cbot *= cb;
return ch / cbot;
}
int main() {
// data types
int x = 1;
int a = getA2(&x);
long b = getB(10);
float c = getC(1.1f);
double d = getD(1.111);
char e = getE();
int salary = 10000;
int array_of_salary[100];
int index = 0;
int* dynamic = malloc(x * sizeof(int));
printf("dynamic : %p\n", dynamic);
int sum = 0;
int product = 0;
get_sum_and_product(2, 3, &sum, &product);
for (index = 0; index < 100; index++) {
array_of_salary[index] = 0;
}
index = 0;
// calculation
int aaa = 1 + 1;
long bbb = 11 + 11;
float ccc = 1.1f + 1.1f;
double ddd = 1.111 + 1.111;
// struct
struct Elf f;
f.level = 1;
f.x = 10;
struct Human g;
g.level = 1;
g.x = 1;
// pointers
int* aa = &a; // address of int
long* bb = &b; // address of long
float* cc = &c; // address of float
double* dd = &d; // address of double
char* ee = &e; // address of char
// pointers of pointer of pointer
int** paa = &aa;
// if
if (salary < 3000) {
salary = salary * 0.95;
} else if (salary == 3000) {
salary = salary * 0.7;
} else {
salary = salary * 0.5;
}
// for
int sigma = 0;
for (index = 1; index < 101; index = index + 1) {
sigma = sigma + index;
}
// while
int max = 100;
while (max < 100) {
max = max + 1;
}
max = 0;
// do - while
do {
max = max + 1;
} while(max < 100);
printf("number : %d %ld %f %f %c\n", a, b, c, d, e);
printf("Elf level : %d\n", f.level);
printf("pointers : %p %p %p %p %p\n", &a, &b, &c, &d, &e);
printf("pointer : %p\n", aa);
printf("pointer to pointer : %p\n", &aa);
printf("pointer to pointer : %p\n", paa);
return 0;
}