double Archives - IT Nursery

C#, Programming

IT Nursery

C# Double – ToString() formatting with two decimal places but no rounding

How do I format a Double to a String in C# so as to have only two decimal places? If I use String.Format("{0:0.00}%", ...

June 3, 2022
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C#, Programming

IT Nursery

Why is a round-trip conversion via a string not safe for a double?

Recently I have had to serialize a double into text, and then get it back. The value seems to not be equivalent: double ...

June 3, 2022
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C++, Programming

IT Nursery

How do I convert a double into a string in C++?

I need to store a double as a string. I know I can use printf if I wanted to display it, but I ...

June 3, 2022
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Programming, swift

IT Nursery

How to round a Double to the nearest Int in swift?

I’m trying to make a calculator of growth rate (Double) that will round the result to the nearest Integer and recalculate from there, ...

June 1, 2022
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C++, Programming

IT Nursery

Compare double to zero using epsilon

Today, I was looking through some C++ code (written by somebody else) and found this section: double someValue = ... if (someValue < ...

May 27, 2022
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Float and double datatype in Java

The float data type is a single-precision 32-bit IEEE 754 floating point and the double data type is a double-precision 64-bit IEEE 754 ...

May 23, 2022
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How do I convert a string to a double in Python?

I would like to know how to convert a string containing digits to a double. 3 Answers 3

May 22, 2022
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How do I parse a string with a decimal point to a double?

I want to parse a string like "3.5" to a double. However, double.Parse("3.5") yields 35 and double.Parse("3.5", System.Globalization.NumberStyles.AllowDecimalPoint) throws a FormatException. Now my ...

May 20, 2022
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biggest integer that can be stored in a double

What is the biggest “no-floating” integer that can be stored in an IEEE 754 double type without losing precision ? 8 Answers 8

May 20, 2022
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How do I print a double value without scientific notation using Java?

I want to print a double value in Java without exponential form. double dexp = 12345678; System.out.println("dexp: "+dexp); It shows this E notation: ...

May 19, 2022
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