CODEWITHSUNDEEP
javamathlogarithm
Alejandro Quintanar
Alejandro Quintanar

Reputation: 878

How To Code this formula in Java?

I have tried to represent this formula in Java but the values are not correct maybe I have some issue transforming the formula to code.

formula

private double getFactor(int y) {
    double factor = 10 * Math.pow(3, logOfBase(2, 10 + Math.pow(y, 3)));
    return factor;
}

public double logOfBase(int base, double num) {
    return Math.log(num) / Math.log(base);
}

Upvotes: 1

Views: 245

Answers (3)

Anthony Genovese
Anthony Genovese

Reputation: 266

To go on Ben Win's for all values of y.

public double getfactor(int y){
double temp = (double)10 + Math.pow(y, 3); //
double factor = 10 * Math.pow(Math.log(temp), 3); 
return factor;
}

Upvotes: 1

Ben Win
Ben Win

Reputation: 840

What about splitting it into more parts:

double temp = (double)10 + Math.pow(0, 3); // 0 = y
double factor = 10 * Math.pow(Math.log(temp), 3); //Math.log - Returns the natural logarithm (base e) of a double value

System.out.println(String.valueOf(factor));

op:

122.08071553760861

Upvotes: 2

Anthony Genovese
Anthony Genovese

Reputation: 266

I think you are looking for log base 3, not log to the power of 3. Therefore, the formula should be 

double factor = 10 * logOfBase(3, 10 + Math.pow(y, 3)));

Upvotes: 1

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