#include <stdio.h>
#include <math.h>
#include <stdlib.h>

int main (int amount, char *para[]) {

    int k;
    double U,f,t,Dt,fvz,Uok,a,b,Nvz,Us,Usok,randak1,randak2;


    if (para[1]==NULL || para[2]==NULL || para[3]==NULL || para[4]==NULL || para[5]==NULL) {
	printf("zadej vsechny parametry (5 - Vzorkovaci frekvence (doporucena 8000Hz) | Amplituda (V) | Frekvence (Hz) | Cas Trvani(ms) | Amplituda sumu (V))\n");
	return 0;
    }

    fvz = atof(para[1]);
    if (fvz<0) {
	printf ("zaporna vzorkovaci frekvence? popis mi presne co by jsi chtel aby to delalo\n");
	return 0;
    }

    U = atof(para[2]);
    if (U<0) {
	printf ("zaporny napeti? prosimte prestan si vymyslet\n");
	return 0;
    }

    f = atof(para[3]);
    if (f<0) {
	printf ("zaporna frekvence? to nezni uplne spravne\n");
	return 0;
    }

    t = atof(para[4]);
    if (t<0) {
	printf ("zaporny cas? ty snad umis cestovat zpatky v case?\n");
	return 0;
    }

    Us = atof(para[5]);
    if (Us<0) {
	printf ("zaporny napeti sumu? doufam ze se mi to jen zdalo\n");
	return 0;
    }
    srandom(Us*10000);



    Dt = 1/fvz;
    Nvz = t / (Dt * 1000);


    for (k=0; k<=Nvz; k++) {
	Uok = U * sin(2 * M_PI * f * Dt * k);
	randak1 = random() % 1000001;
	randak2 = random() % 1000001;
	Usok = Uok + Us * ((randak1 / 1000000) - (randak2 / 1000000));
	//printf ("%8.6f   |  %9.6f   | %9.6f\n",Dt * k, Usok, Usok - Uok);
	printf ("%9.6f\n",Usok);
    }



    return 0;
}