Numeric types (double, single, integer) in MATLAB - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a variable x as a double precision number with value 5.

MATLAB

x = [1](5);

Drag options to blanks, or click blank then click option'

Adouble

Bsingle

Cint32

Duint8

Attempts:

3 left

💡 Hint

Common Mistakes

Using integer types like int32 or uint8 when a floating-point number is needed.

In MATLAB, double is the default numeric type for floating-point numbers. Using double(5) creates a double precision number.

2fill in blank

medium

Complete the code to create a variable y as a single precision number with value 3.14.

MATLAB

y = [1](3.14);

Drag options to blanks, or click blank then click option'

Aint16

Buint32

Csingle

Ddouble

Attempts:

3 left

💡 Hint

Common Mistakes

Using double instead of single.

The single function converts a number to single precision floating-point format.

3fill in blank

hard

Fix the error in the code to create an integer variable z with value 10 using the correct integer type.

MATLAB

z = [1](10);

Drag options to blanks, or click blank then click option'

Adouble

Bint32

Csingle

Dfloat

Attempts:

3 left

💡 Hint

Common Mistakes

Using floating-point types like single or double instead of integer types.

To create a 32-bit integer in MATLAB, use int32. The other options are either floating-point types or invalid in MATLAB.

4fill in blank

hard

Fill both blanks to create a variable a as a single precision number and a variable b as an unsigned 8-bit integer.

MATLAB

a = [1](7.5);
b = [2](255);

Drag options to blanks, or click blank then click option'

Asingle

Bint16

Cuint8

Ddouble

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up signed and unsigned integer types.

a is created as single precision using single. b is created as an unsigned 8-bit integer using uint8.

5fill in blank

hard

Fill all three blanks to create a dictionary (struct) data with keys val1, val2, and val3 storing a double, a single, and an int16 value respectively.

MATLAB

data.val1 = [1](1.23);
data.val2 = [2](4.56);
data.val3 = [3](100);

Drag options to blanks, or click blank then click option'

Adouble

Bsingle

Cint16

Duint32

Attempts:

3 left

💡 Hint

Common Mistakes

Using unsigned integer types instead of signed for int16.

val1 is double precision, val2 is single precision, and val3 is a 16-bit signed integer.