#MATL, 5 bytes

YNVH)

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Explanation

YN      % Creates a NaN value (not a number)
V       % Convert it to a string
H)      % Grab the second letter ('a')
        % Implicitly display the result

My original answer was the straight forward approach using the pre-defined literal lY2 which yields 'A'...'Z' and then selecting the first element, 'A'.

lY2l)

MATL, 5 bytes

YNVH)

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Explanation

YN      % Creates a NaN value (not a number)
V       % Convert it to a string
H)      % Grab the second letter ('a')
        % Implicitly display the result

My original answer was the straight forward approach using the pre-defined literal lY2 which yields 'A'...'Z' and then selecting the first element, 'A'.

lY2l)

#MATL, 5 bytes

YNVH)

Try it Online

Explanation

YN      % Creates a NaN value (not a number)
V       % Convert it to a string
H)      % Grab the second letter ('a')
        % Implicitly display the result

My original answer was the straight forward approach

lY2l)

#MATL, 5 bytes

YNVH)

Try it Online

Explanation

YN      % Creates a NaN value (not a number)
V       % Convert it to a string
H)      % Grab the second letter ('a')
        % Implicitly display the result

My original answer was the straight forward approach using the pre-defined literal lY2 which yields 'A'...'Z' and then selecting the first element, 'A'.

lY2l)

#MATL, 5 bytes

lY2l)

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Explanation

lY2     % Pre-defined literal which contains the letters ['A' ... 'Z']
l)      % Grab just the first value
        % Implicitly display the result

#MATL, 5 bytes

YNVH)

Try it Online

Explanation

YN      % Creates a NaN value (not a number)
V       % Convert it to a string
H)      % Grab the second letter ('a')
        % Implicitly display the result

My original answer was the straight forward approach

lY2l)