Problem 1833. Usage of java.math : Add, Multiply, Pow

This challenge is an introduction to the wonderful word of java.math that allows unlimited precision calculations. The primary reference sites are Java Math, Java BigDecimal, and Java BigInteger.

The usage of BigDecimal functions add, multiply, and pow will be tested.

Java Math tutorial: (Simplified summary that is believed correct)

vd-decimal value, vstr-string, vi-integer value 
xBD=java.math.BigDecimal(vd);  % valid vd,vstr,vi creates xBD a BigDecimal variable
import java.math.*;  % simplifies statements
xBD=BigDecimal(vstr);
x2pwrBD=xBD.pow(vi); % Invalid: vd,vstr,BD
xplusyBD=xBD.add(BigDecimal(y)); % add input requires BD type
xmultiplyzBD=xBD.multiply(BigDecimal(z));  % multiply input requires BD type
To convert java to string of unlimited length can be achieved via java toString or Matlab char
xstr=toString(xBD)  or xstr=char(xBD) 

Input: X,Y, function_case [X,Y double or str, function 1:X+Y, 2:X*Y, 3: X^Y(double)

Output: z (char variable)

Future Challenges:

1. nchoosek_large (full precision)
2. Next Prime
3. factor_large

4. Factorial

Solution Stats

46.9% Correct | 53.1% Incorrect
Last Solution submitted on Feb 11, 2023

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers33

Suggested Problems

More from this Author308

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!