Program Listing for File telescope.cpp

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#include "telescope.h"
#include <math.h>

Telescope::Telescope() : d(2 / sqrt(M_PI)), f(1.) {
}

Telescope::Telescope(double d, double f) : d(d), f(f) {

}

double Telescope::get_area() {
    return this->d * this->d / 4. * M_PI;
}

double Telescope::get_diameter() {
    return this->d;
}

double Telescope::get_focal_ratio() {
    return this->f / this->d;
}