float p, r, t, si; printf("Enter principal, rate, time: "); scanf("%f %f %f", &p, &r, &t); si = (p * r * t) / 100; printf("Simple Interest = %f\n", si); return 0;

Highly recommended for beginners who want a gentle, example-driven start with C. It won’t make you an expert in system programming or embedded C, but it builds a rock-solid foundation. The ebook’s convenience and searchability give it an edge over the physical copy for frequent reference. Would you like a comparison of this book with other popular C ebooks (e.g., Kernighan & Ritchie, Stephen Kochan)?