I am reviewing an algorithm already created, to understand how to make a function that returns the average of three notes, but I would like to know what it does with the conver.tosingle
promedio = Convert.ToSingle((nota1 * 0.35) + (nota2 * 0.35) + (nota3 * 0.30));
Converts a data type string , int16 , int32 , int64 , float , double , char , bool , Datetime to single type Single.
It is good to note that Single and float are the same, there is no difference between the two.
Single s = 11;
float f = 22;
s = f; // valido
f = s; // valido
Single was a data type introduced by microsoft while float was left for programmers to migrate from c make the transition easier for the float data type in c . Let's say that the type float is an alias for Single .
Converts the value of the specified decimal number to a simple precision float number, that is, very large numbers will show them in a simple type:
Example:
result = Convert.ToSingle(Decimal.MinValue);
//El valor de Decimal.MinValue = '-79228162514264337593543950335'
//El resultado 'result' de esta operación és: '-7.922816E+28'
Class Convert ( Reference ) provides methods to convert data.
According to the comments in its source code , conversions can be made from according to this table:
// From: To: Bol Chr SBy Byt I16 U16 I32 U32 I64 U64 Sgl Dbl Dec Dat Str
// ----------------------------------------------------------------------
// Boolean x x x x x x x x x x x x x
// Char x x x x x x x x x x
// SByte x x x x x x x x x x x x x x
// Byte x x x x x x x x x x x x x x
// Int16 x x x x x x x x x x x x x x
// UInt16 x x x x x x x x x x x x x x
// Int32 x x x x x x x x x x x x x x
// UInt32 x x x x x x x x x x x x x x
// Int64 x x x x x x x x x x x x x x
// UInt64 x x x x x x x x x x x x x x
// Single x x x x x x x x x x x x x
// Double x x x x x x x x x x x x x
// Decimal x x x x x x x x x x x x x
// DateTime x x
// String x x x x x x x x x x x x x x x
// ----------------------------------------------------------------------
On the other hand, type Single ( Reference ) in C # is what in other languages such as Java is interpreted as float : a precision floating point number.
Therefore Convert.ToSingle is a method that converts data of types bool , SByte , byte , int (and variations), double , decimal and string to data type Single or "float".
The ToSingle method attempts to convert the value passed as a parameter to a Simple Precision Floating Number ie a number in this range:
1.5 × 10 ^ 45 to 3.4 × 10 ^ 38 with a precision of 7 digits
If you used ToDouble, it would be a double-precision floating:
Approximately 5.0 × 10 ^ 324 to 1.7 × 10 ^ 308 with precision of 15-16 digits.
The standard that governs these types is that of IEEE 754 formats
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