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)) 