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#include <math.h>
double sin(double r) {
r = fmod(r + PI, PI * 2) - PI;
double d = r;
float mult = -1;
for (int i = 3; i < 11; i+= 2, mult = -mult) {
d += (pow(r, i)/fact(i)) * mult;
}
return d;
}
double cos(double r) {
r = fmod(r + PI, PI * 2) - PI;
double d = 1;
float mult = -1;
for (int i = 2; i < 10; i+= 2, mult = -mult) {
d += (pow(r, i)/fact(i)) * mult;
}
return d;
}
double tan(double r) {
return sin(r) / cos(r);
}
double csc(double r) {
return 1 / sin(r);
}
double sec(double r) {
return 1 / cos(r);
}
double cot(double r) {
return cos(r) / sin(r);
}
double sinh(double r) {
return (pow(E, r) - pow(E, -r)) / 2;
}
double cosh(double r) {
return (pow(E, r) + pow(E, -r)) / 2;
}
double tanh(double r) {
return sinh(r) / cosh(r);
}
double csch(double r) {
return 1 / sinh(r);
}
double sech(double r) {
return 1 / cosh(r);
}
double coth(double r) {
return cosh(r) / sinh(r);
}
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