import java.util.Scanner;
public class TaylorSin {
/* I am trying to approximate sin(x) using Maclaurin Series...
I am trying to get 1 term (1 Step Towards my approximation) the exponent divided by a factorial...
However I get stuck in the calculateExponent method...
Thank You in Advance! */
public static void main(String[] args) {
Scanner Keyboard = new Scanner(System.in);
double base; int exponent, n;
System.out.println();
System.out.println("Enter Base: ");
base = Keyboard.nextDouble();
System.out.println("Enter Exponent: ");
exponent = Keyboard.nextInt();
System.out.println("Enter n: ");
n = Keyboard.nextInt();
System.out.println();
System.out.println(calculateTerm(2.0, 4, 2));
}
public static int calculateFactorial(int n) {
int facto = 1;
for (int i = 1; i <= n; i++)
{facto = facto * i;}
return facto;
}
public static double calculateExponent(double base, int exponent) {
if(exponent == 0){return 1;}
else { return base * exponent(base, exponent - 1);} //The mistake occurs on that line...
}
public static double calculateTerm(double base, int exponent, int n) {
double term = (calculateExponent(base, exponent)/calculateFactorial(n));
return term;
}
}
答案 0 :(得分:2)
而不是
else { return base * exponent(base, exponent - 1);} //The mistake occurs on that line...
你的意思是
else { return base * calculateExponent(base, exponent - 1);} //The mistake occurs on that line...
(即exponent
替换calculateExponent
)
未定义方法名称exponent
。这就是错误消息试图告诉你的内容。
答案 1 :(得分:0)
你的意思是Math.pow? Math.exp?
http://docs.oracle.com/javase/1.4.2/docs/api/java/lang/Math.html