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36 lines
988 B
36 lines
988 B
package guangzhaowei;
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import java.util.Scanner;
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public class Triangle {
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public static void angle(){
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Scanner sc= new Scanner(System.in);
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System.out.println("三角函数类型：");
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String b=sc.next();
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System.out.println("数值：");
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double a=sc.nextDouble();
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double c = Math.toRadians(a);
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if (a % 180 == 0 && b.equals("sin")) {
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System.out.println("运算结果是0");
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}
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if (a % 90 == 0 && a % 180 != 0 && b.equals("cos")) {
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System.out.println("运算结果是0");
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}
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switch (b) {
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case "cos":
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System.out.println("运算结果是"+Math.cos(c));
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break;
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case "sin":
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System.out.println("运算结果是"+Math.sin(c));
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break;
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case "tan":
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System.out.println("运算结果是"+Math.tan(c));
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break;
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case "cot":
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System.out.println("运算结果是"+1 / Math.tan(c));
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break;
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}
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}
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}
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