Find maximum element along with its index in Julia - findmax() Method

Getting maximum elements in Julia - maximum() and maximum!() Methods

Last Updated : 25 Apr, 2025

The maximum() is an inbuilt function in julia which is used to return maximum elements in different scenario.

Syntax:
maximum(f, itr)
or
maximum(itr)
or
maximum(A::AbstractArray; dims)

Parameters:

f: Specified function.
itr: Specified list of elements.
A::AbstractArray: Specified array of different dimensions.
dims: Specified dimensions.

Returns: It returns the maximum elements in different scenario.

Example:

Julia

# Julia program to illustrate 
# the use of maximum() method

# Getting maximum elements in different scenarios

# In the below scenario, length function 
# and a list of elements are used as 
# parameter. Here the length of string with 
# maximum alphabets will be returned
println(maximum(length, ["GFG", "Geeks", "GeeksforGeeks"]))

# In the below scenario, a list of 
# elements are shown and maximum elements are 
# returned as output
println(maximum([5, 10, 15, 20]))

# Getting the maximum value of an array
# over the given dimensions
A = [5 10; 15 20];
println(maximum(A, dims = 1))
println(maximum(A, dims = 2))

Output:

The maximum!() is an inbuilt function in julia which is used to calculate the maximum value of the specified array over the specified singleton dimensions.

Syntax: maximum!(r, A)
Parameters:

r: Specified singleton dimensions.
A: Specified array.

Returns: It returns the maximum value of the specified array over the specified singleton dimensions.

Example:

Julia

# Julia program to illustrate 
# the use of maximum !() method

# Getting the maximum value of the
# specified array over the specified
# singleton dimensions.
A = [5 10; 15 20];
println(maximum !([1; 1], A))
println(maximum !([1 1], A))

Output:

[10, 20]
[15 20]

Find maximum element along with its index in Julia - findmax() Method

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Kanchan_Ray

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Julia

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