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Calculate exponential of a value in Julia – exp(), exp10(), exp2(), expm1() and frexp() Methods

  • Last Updated : 26 Mar, 2020

The exp() is an inbuilt function in julia which is used to calculate the natural base exponential of the specified number.

Syntax: exp(x)

Parameters:

  • x: Specified values.

Returns: It returns the calculated natural base exponential of the specified number.

Example:






# Julia program to illustrate 
# the use of exp() method
  
# Getting the natural base exponential
# of the specified number.
println(exp(0))
println(exp(1))
println(exp(5))
println(exp(-1))

Output:

1.0
2.718281828459045
148.4131591025766
0.36787944117144233

exp10()

The exp10() is an inbuilt function in julia which is used to calculate the base 10 exponential of the specified number.

Syntax: exp10(x)

Parameters:

  • x: Specified values.

Returns: It returns the calculated base 10 exponential of the specified number.

Example:




# Julia program to illustrate 
# the use of exp10() method
  
# Getting the base 10 exponential
# of the specified number.
println(exp10(0))
println(exp10(1))
println(exp10(10))
println(exp10(-1))

Output:

1.0
10.0
1.0e10
0.1

exp2()

The exp2() is an inbuilt function in julia which is used to calculate the base 2 exponential of the specified number.



Syntax: exp2(x)

Parameters:

  • x: Specified values.

Returns: It returns the calculated base 2 exponential of the specified number.

Example:




# Julia program to illustrate 
# the use of exp2() method
  
# Getting the base 2 exponential
# of the specified number.
println(exp2(0))
println(exp2(1))
println(exp2(2))
println(exp2(-1))

Output:

1.0
2.0
4.0
0.5

expm1()

The expm1() is an inbuilt function in julia which is used to accurately calculate e^x-1.

Syntax: expm1(x)

Parameters:

  • x: Specified values.

Returns: It returns the calculated value of e^x-1.

Example:






# Julia program to illustrate 
# the use of expm1() method
  
# Getting the accurate value
# of given expression
println(expm1(0))
println(expm1(1))
println(expm1(2))
println(expm1(-1))

Output:

0.0
1.718281828459045
6.38905609893065
-0.6321205588285577

frexp()

The frexp() is an inbuilt function in julia which is used to return (x, exp), where x is given and having a magnitude in the interval [1/2, 1) or 0.

Syntax: frexp(x)

Parameters:

  • x: Specified values in the interval [1/2, 1) or 0.

Returns: It returns (x, exp), where x is given and having a magnitude in the interval [1/2, 1) or 0.

Example:




# Julia program to illustrate 
# the use of frexp() method
  
# Getting (x, exp), where
# x is given and having a magnitude
# in the interval [1 / 2, 1) or 0.
println(frexp(0.6))
println(frexp(0.5))
println(frexp(0.7))
println(frexp(0.9999))

Output:

(0.6, 0)
(0.5, 0)
(0.7, 0)
(0.9999, 0)



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