75 lines
1.5 KiB
C
75 lines
1.5 KiB
C
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#include <stdio.h>
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#include <math.h>
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#include <Windows.h>
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#include <locale.h>
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#define PI 3.14159265358979323846
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void vector_angle() {
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float x1, y1, x2, y2;
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printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>\n");
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printf("x1 = ");
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scanf_s("%f", &x1);
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printf("y1 = ");
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scanf_s("%f", &y1);
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printf("x2 = ");
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scanf_s("%f", &x2);
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printf("y2 = ");
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scanf_s("%f", &y2);
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printf("%.2f <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>", 57.3 * acos((x1 * x2 + y1 * y2) / (sqrt(x1 * x1 + y1 * y1) * sqrt(x2 * x2 + y2 * y2))));
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}
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void lc_freq() {
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float L, C;
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printf("L = ");
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scanf_s("%f", &L);
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printf("C = ");
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scanf_s("%f", &C);
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printf("%.2f <20><>", 1 / (2 * PI * sqrt(L * C)));
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}
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void deposit() {
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int money, days;
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float rate, eff, result;
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printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> %% = ");
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scanf_s("%f", &rate);
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printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> = ");
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scanf_s("%d", &money);
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printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD> = ");
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scanf_s("%d", &days);
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result = money * pow((1 + (rate / 100) / days), days);
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eff = (result - money) / money * 100;
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printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> = %.2f%% <20><><EFBFBD><EFBFBD><EFBFBD> = %.2f", eff, result - money);
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}
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int main() {
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//setlocale(LC_ALL, "Russian");
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SetConsoleCP(1251);
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SetConsoleOutputCP(1251);
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int num;
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printf("1. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.\n");
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printf("2. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> LC-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.\n");
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printf("3. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD>.\n");
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printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: ");
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scanf_s("%d", &num);
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switch (num)
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{
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case 1:
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vector_angle();
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break;
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case 2:
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lc_freq();
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break;
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case 3:
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deposit();
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break;
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default:
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printf("<EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>!");
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break;
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}
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return 0;
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}
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