Matlab 2e4p1i

5/20/2019

Right-matrix division - MATLAB mrdivide /

mrdivide, / Right-matrix division

Syntax X = A/b X = mrdivide(A, b)

Description X = A/b performs right-matrix division.

example

X = mrdivide(A, b) is an alternative way to execute X = A/b.

Examples

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Divide fi Matrix by a Constant

In this example, you use the forward slash (/) operator to perform right matrix division on a 3-by-3 magic square of fi objects. Because the numerator input is a fi object, the denominator input b must be a scalar.

Try it in MATLAB

A = fi(magic(3)) A = 8 3 4

1 5 9

6 7 2

DataTypeMode: Signedness: WordLength: FractionLength:

Fixed-point: binary point scaling Signed 16 11

b = fi(3,1,12,8) b = 3 DataTypeMode: Signedness: WordLength: FractionLength:

Fixed-point: binary point scaling Signed 12 8

X = A/b X = 2.6250 1.0000 1.3750

0.3750 1.6250 3.0000

2.0000 2.3750 0.6250

DataTypeMode: Fixed-point: binary point scaling https://www.mathworks.com/help/fixedpoint/ref/embedded.fi.mrdivide.html

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Right-matrix division - MATLAB mrdivide /

Signedness: Signed WordLength: 16 FractionLength: 3

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Perform Matrix Division

You can perform right-matrix division when neither input is a fi object. The matrix dimensions must be compatible for matrix division.

Try it in MATLAB

A = [2, 3, 1; 0, 8, 4; 1, 1, 0] A = 3×3 2 0 1

3 8 1

1 4 0

B = [7, 6, 6; 1, 0, 5; 9, 0, 4] B = 3×3 7 1 9

6 0 0

6 5 4

X = mrdivide(A,B) X = 3×3 0.5000 1.3333 0.1667

-0.2927 0.0325 -0.2033

-0.1341 -1.0407 0.0041

Input Arguments

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A — Numerator scalar | vector | matrix | multidimensional array

Numerator, specified as a scalar, vector, matrix, or multidimensional array. If one or both of the inputs is a fi object, then b must be a scalar. When b is a scalar, mrdivide is equivalent to rdivide. Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 | logical | fi Complex Number : Yes

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b — Denominator scalar | vector | matrix | multidimensional array

https://www.mathworks.com/help/fixedpoint/ref/embedded.fi.mrdivide.html

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Right-matrix division - MATLAB mrdivide /

Denominator, specified as a real scalar, vector, matrix, or multidimensional array. If one or both of the inputs is a fi object, then b must be a scalar. When b is a scalar, mrdivide is equivalent to rdivide. If neither input is a fi object, then the sizes of the input matrices must be compatible for matrix division. Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 | logical | fi

Output Arguments

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X — Quotient scalar | vector | matrix | multidimensional array

Solution, returned as an array with the same dimensions as the numerator input A. When A is complex, the real and imaginary parts of A are independently divided by b.

Extended Capabilities C/C++ Code Generation Generate C and C++ code using MATLAB® Coder™.

See Also add | divide | fi | fimath | numerictype | rdivide | sub | sum

Introduced in R2009a

https://www.mathworks.com/help/fixedpoint/ref/embedded.fi.mrdivide.html

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