Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
The is_nan() function checks for ‘not a number’ value. It Returns TRUE if num is 'not a number', else FALSE is Returned.Syntaxis_nan(num)Parametersnum − The value to checkReturnThe is_nan() function Returns TRUE if num is 'not a number', else FALSE is Returned.ExampleLet us see another example −Example
The mt_srand() function seeds the Mersenne Twister random number generator.Note − Random number generator is seeded automatically after the release of PHP 4.2.0. This function is not needed now.Syntaxmt_srand(seed)Parametersseed − The seed valueReturnThe mt_srand() function Returns nothing.Example Live DemoOutput1320295657
The Timer Class in Java is a facility for threads to plan tasks for future execution in a background thread. Tasks may be executed a single time or multiple times. The Timer class is thread-safe i.e. the threads of the class do not require external synchronization and can share a single Timer object. A point to be noted is that all constructors start a Timer thread.The Timer Class in Java came into existence since JDK 1.3. This class ascends up to large numbers of concurrently scheduled tasks. Internally, it uses a binary heap in the memory to represent its task ... Read More
The deg2rad() function converts degree to radian value. It Returns the radian equivalent of the specified degree value.Syntaxdeg2rad(num)Parametersnum − The degree value to be converted to radian.ReturnThe deg2rad() function Returns the radian equivalent of the specified degree value.Example Live DemoOutput360 degrees converted to 6.2831853071796 radians!Let us see another example −Example Live DemoOutput0.785398163397451.57079632679493.14159265358984.71238898038476.2831853071796
The exp() function Returns ex. This is e raised to the power x.Here,'e' is 2.718282 x is the powerSyntaxexp(x)Parametersx = The exponentReturnThe exp() function Returns e raised to the power of x, which is a float value.Example Live DemoOutput12.718281828459Let us see another example −Example Live DemoOutput7.3890560989307148.41315910258485165195.40979
The expm1() function Returns e raised to the power x - 1 i.eex -1Syntaxexpm1(val)Parametersval − This is the powerReturnThe expm1() function Returns e raised to the power x - 1Example Live DemoOutput01.718281828459Let us see another example −Example Live DemoOutpute^1-1 = 1.718281828459
The ceil() function rounds a number down to the nearest integer.Syntaxfloor(num)Parametersnum − The number to round upReturnThe floor() function Returns the value rounded up to the nearest (down) integer.Example Live DemoOutput0 0Let us see another example −Example Live DemoOutput9Let us see another example −Example Live DemoOutput7 -5
The fmod() function Returns the modulo of dividend/ divisor. Floating modulo in fmod.Syntaxfmod(dividend/ divisor)Parametersdividend − The number to be divided.divisor − This is the number that divides.ReturnThe fmod() function Returns the remainder of dividend/ divisor.Example Live DemoOutput3
One of the methods of the Timer class is the int purge() method. The purge() method removes all the canceled tasks from the timer’s task queue. Invoking this method does not affect the behavior of the timer, rather it eliminates references to the canceled tasks from the queue. The purge() method came into existence since JDK 1.5.The purge() method acts as a medium for space-time tradeoff where it trades time for space. More specifically, the time complexity of the method is proportional to n + c log n, where n is the number of tasks in the queue and c ... Read More
The hypot() function is used to calculate the hypotenuse of a right-angle triangle. It Returns the length of the hypotenuse in float. Of a right-angled triangle, the longest side is hypotenuse.Syntaxhypot(a, b)Parametersa − Length of first sideb − Length of second sideReturnThe hypot() function Returns the length of the hypotenuse in float.Example Live DemoOutput8.24621125123538.5440037453175