Question

| z⁴-1 | express in java expression​

Answer 1

Java Expression for:-

• $| {z}^{4} - 1 |$

Answer:-

• Math.abs(Math.pow(z,4)-1)

• Math.abs((z*z*z*z)-1);

Note:-

• Math.abs(a) returns absolute (positive) value of a number. Return data type: Depends on data type input given by the user.
• Math.pow(a) returns a number raised to power other number. Return data type: Double

More about Math Functions:-

• Math.ceil(a) - Rounds the number upto next higher integer. Return data type: Double
• Math.floor(a) - Rounds the number upto next lower integer. Return data type: Double.
• Math.max(a,b)- Returns the maximum value between two parameters. Return data type: Depends on the data type of the parameters.
• Math.min(a,b)- Returns minimum value between two parameters. Return data type: Depends on the data type of the parameters.
• Math.cbrt(a)- Returns cube root. Return data type: Double.
• Math.sqrt(a)- Returns square root. Return data type: Double.
• Math.log(a)- Returns natural logarithmic value of a given argument. Return data type: Double.
• Math.round(a)- Returns the number rounded to the nearest integer. (For more info: Please check the Knowledge box given at last.)
• Math.rint(a)- Returns the nearest integer of a given number. Return data type: double
• Math.exp(a)- Returns exponential value of a given argument. Return data type: double
• Math.random()- There are no argument in this function and it returns random number between 0 and 1. Return data type: double

_______

Knowledge Box...!

• It is necessary to know that round() and rint() are not same.
• Math.round() returns number in int data type while Math.rint() returns number in double data type.
• Another Difference... Let's take -9.5 as a parameter Math.round(-9.5) will return -9 while Math.rint(-9.5) returns -10.0

Answer 2

$\textsf{\large Given Expression}$

    $\mid z^4 - 1 \mid$

$\textsf{\large Java Expression}$

    $\texttt{Math.abs(Math.pow(z, 4) - 1);}$