Please answer Part B as soon as possible. Sorry if the text is not clear. Thanks

Question

Please answer Part B as soon as possible. Sorry if the text is not clear. Thanks.

3.) You are working with a group that is testing a new oscilloscope. The software you are working on is using the below struct to store each signal collected by the team members #define MAXPTS 10000 typedef struct Collections starting time expressed as the number of seconds since 1/1970 time between subsequent samples The values of the signal in volts (12 pts) Draw a diagram of a simple real world signal and relate the elements of signal t to it. (20 pts) Write a function that takes a pointer to a signal along and outputs the signal in the following format: (Example below pts=3. Start time is 123456, dt is 0.5, name is Tom Daniels) Sample output: Tam Daniels collected 3 points starting at 123456-5

Explanation / Answer

Wasn't sure whether you're using c or c++. I can change it to more c++ style (cout rather than printf) if you would like. Code is also here: http://pastebin.com/ZtM0KCRZ.

/* Signal.c */
#include <stdio.h>

#define MAXPTS 10000

typedef struct {
    char *name;       /* name of person collecting data */
    int pts;          /* number of points in the signal */
    int starttime;    /* collection starting time expressed as the number of seconds since 1/1/1970 */
    double dt;        /* time between subsequent samples */
    double s[MAXPTS]; /* the values of the signal in volts */
} signal_t;

void disp_signal(signal_t *s);

int main(void) {
    signal_t test;

    test.name = "Tom Daniels";
    test.pts = 3;
    test.starttime = 123456;
    test.dt = 0.5;
    test.s[0] = -1.0;
    test.s[1] = 0.0;
    test.s[2] = 1.0;

    disp_signal(&test);

    return 0;
}

void disp_signal(signal_t *sig) {
    size_t i;

    printf("%s collected %i points starting at %i s. ", sig->name, sig->pts, sig->starttime);

    for (i = 0; i < sig->pts; ++i) {
        printf("%.2f %.3f ", sig->starttime + sig->dt * i, sig->s[i]);
    }
}

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