Grokking Modern System Design Interview for Engineers & Managers
Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.
The Modf
function is used to find the integer and fractional part of a floating-point number.
To use this function, you must import the math
package in your file and access the Modf
function within it using the .
notation (math.Modf
). Here, Modf
is the actual function, while math
is the Go package that stores the definition of this function.
The definition of the Modf
function inside the math
package is as follows:
Modf
takes a single argument of type float64
whose whole number and fractional parts are to be returned.
The Modf
function returns two values of type float64
:
int
: The integer part of the passed parameter.
frac
: The fractional part of the passed parameter.
Some special return cases:
If (±)Inf is passed as an argument, then Modf
returns (±)Inf and NAN
.
If the argument passed is NAN
, then Modf
returns NAN
and NAN
.
Below is a simple example where we find out the integer and fractional parts of $3.3456$.
package mainimport("fmt""math")func main() {var x float64 = 3.3456var w,z float64 = math.Modf(x)fmt.Print("For ", x," integer part: ", w, " fractional part: ",z)}
The example below demonstrates how the Modf
function handles a NAN
value in its argument.
Here, we use the
NaN
function present in themath
package to generate aNAN
value.
package mainimport("fmt""math")func main() {var x float64 = math.NaN()var w,z float64 = math.Modf(x)fmt.Print("For ", x," integer part: ", w, " fractional part: ",z)}
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Grokking Modern System Design Interview for Engineers & Managers
Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.