How to increase the java precision

Question

I am trying to make a Mandelbrot fractal zoom in java, but when the zoom increases, the double does not have enought precision and the image gets pixelated and I can not zoom more. I want to increase the precision or use another data type that allows me to that. Thank you.

Does this answer your question? [Java Mandelbrot visualization questions on zooming and coloring](https://stackoverflow.com/questions/53381336/java-mandelbrot-visualization-questions-on-zooming-and-coloring) — akuzminykh, Jun 14 '20 at 01:02

Alim Ul Gias · Accepted Answer · 2020-06-14T01:54:26.947

2

You can use the BigDecimal class.

For example -

    BigDecimal a = new BigDecimal("0.000000000000000000000000000005");
    BigDecimal b = new BigDecimal("0.06");
    BigDecimal c = b.subtract(a);
    System.out.println(c);

EDIT: You can control the number of digits to the right of the decimal point using the setScale() method

    BigDecimal p=a.setScale(29, BigDecimal.ROUND_HALF_UP);

edited Jun 14 '20 at 01:54

answered Jun 14 '20 at 01:05

Alim Ul Gias

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Thank u! But I can change the precision? – Arthur Bacci Jun 14 '20 at 01:13
But, that will give your code an extraordinary performance hit compared to doubles. BigDecimals allocate multiple objects and are immutable, so you are creating new objects for every calculation step. – Erwin Bolwidt Jun 14 '20 at 01:29
@ArthurBacci I have made an update. Have a look. – Alim Ul Gias Jun 14 '20 at 11:41

How to increase the java precision

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