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Converting float numbers to integer in Python

>>> int(3.7)
3

>>> int(-3.4)
-3

>>> int(round(3.8))
4

#historicalcode #numbers

The Vancouver Stock Exchange’s Rounding Error that Dropped the Market Value by Half

- return floor(value)
+ return round(value)

#javascript #jsfunctions #numbers

toExponential() - Round off numbers in exponential notation

var x = 1.234;
 
var y = x.toExponential(2); 
// returns y = 1.23e+0
 
var y = x.toExponential(5);  
// returns y = 1.23450e+0

#javascript #jsfunctions #numbers

parseInt() Method - returns a whole number from a string

parseInt("10");         // returns 10
parseInt("10.33");      // returns 10
parseInt("10 20 30");   // returns 10
parseInt("10 years");   // returns 10
parseInt("years 10");   // returns NaN

#javascript #jsfunctions #numbers

toFixed() Method - convert number to string with fixed number of decimal places

var x = 1.2345;

var y = x.toFixed(0);
//y equals 1;

var y = x.toFixed(2);
//y equals 1.23

var y = x.toFixed(5);
//y equals 1.23400

#javascript #numbers #jsfunctions

toString() - Convert numbers to string

var x = 123;

//OPTION 1
var y = x.toString();           

//OPTION 2
var y = (123).toString();        

//OPTION 3
var y = (100 + 23).toString();   

// value of y is 123 in all 3 cases.

#javascript #jsfunctions #numbers

The valueOf() Method - Returns number of mathematical expression or number variable

var x = 1234;
var y = x.valueOf(); 

var y = (1234).valueOf();

var y (1000+234).valueOf();

//y equals 1234 in all 3 cases

Converting float numbers to integer in Python

The Vancouver Stock Exchange’s Rounding Error that Dropped the Market Value by Half

toExponential() - Round off numbers in exponential notation

parseInt() Method - returns a whole number from a string

toFixed() Method - convert number to string with fixed number of decimal places

toString() - Convert numbers to string

The valueOf() Method - Returns number of mathematical expression or number variable

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