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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. int main() {
  5.     // パラメータの定義
  6.     double R = 3000.0;  // 抵抗 (オーム)
  7.     double L = 0.001;   // インダクタンス (ヘンリー)
  8.     double V_E = 5.0;   // 電源電圧 (ボルト)
  9.     double time, I, tau;
  10.     int steps = 10;    // 計算ステップ数を10に制限
  11.     double t_max = 0.001; // 計算する最大時間 (秒)
  12.     int i;  // ループ変数
  13.  
  14.     // 時定数 τ = L / R
  15.     tau = L / R;
  16.  
  17.     // 時間変化に伴う電流 I(t) を計算
  18.     // ヘッダーをカンマ区切りで出力
  19.     printf("Time(s),Current(A)\n");
  20.  
  21.     for (i = 0; i <= steps; i++) {
  22.         time = t_max * i / steps;
  23.         I = (V_E / R) * (1 - exp(-time / tau));
  24.         // 結果をカンマ区切りで出力
  25.         printf("%f,%f\n", time, I);
  26.     }
  27.  
  28.     return 0;
  29. }
  30.  
Success #stdin #stdout 0.01s 5284KB
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stdin
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Standard input is empty
stdout
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Time(s),Current(A)
0.000000,0.000000
0.000100,0.001667
0.000200,0.001667
0.000300,0.001667
0.000400,0.001667
0.000500,0.001667
0.000600,0.001667
0.000700,0.001667
0.000800,0.001667
0.000900,0.001667
0.001000,0.001667
https://ideone.com/udkakU
language:
Objective-C (gcc 8.3)
created:
7 days ago
visibility:
public

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