Subtract

Subtracts two variables. It returns the difference of x and y. It is performed element-wise if the arguments are vectors, matrices or signals. Inputs must be of the same size and the same type unless the second variable is a scalar.

Syntax

x-y

Types

	Variable Name	Value Type	Variable Type
Arguments:	x	real, complex	scalar, vector, matrix, signal, xy-data
Arguments:	y	real, complex	scalar, vector, matrix, signal, xy-data
Result:	z	real, complex	scalar, vector, matrix, signal, xy-data

Calculator Input

Use the - button to complete the operation.

Examples

Subtract Scalar from Scalar

ID	Description	Type	Value	Expression
x	Argument	REAL	2	2
y	Argument	REAL	3	3
z	Result	REAL	-1	x-y

Subtract Scalar from Vector

ID	Description	Type	Value	Expression
x	Argument	REAL VECTOR		[2, 2.5]
y	Argument	REAL	3	3
z	Result	REAL VECTOR		x-y

Subtract Vector from Vector (Same Size)

ID	Description	Type	Expression
x	Argument	REAL VECTOR	[2, 2.5]
y	Argument	REAL VECTOR	[3, 3.5]
z	Result	REAL VECTOR	x-y

Subtract Scalar from Matrix

ID	Description	Type	Value	Expression
x	Argument	REAL MATRIX		[[2, 2.5, 3],[3.5, 4, 4.5]]
y	Argument	REAL	1	1
z	Result	REAL MATRIX		x-y

Subtract Matrix from Matrix (Same Size)

ID	Description	Type	Expression
x	Argument	REAL MATRIX	[[2, 2.5],[1, 1]]
y	Argument	REAL MATRIX	[[1, 1],[3, 3.5]]
z	Result	REAL MATRIX	x-y

Subtract Scalar from Signal

ID	Description	Type	Value	Expression
x	Argument	REAL SIGNAL		signal([0, 0.5, 1],[1, 2, 3])
y	Argument	REAL	1	1
z	Result	REAL SIGNAL		x-y

Subtract Signal from Signal (Same Size)

ID	Description	Type	Expression
x	Argument	REAL SIGNAL	signal([0, 0.5, 1],[1, 2, 3])
y	Argument	REAL SIGNAL	signal([0, 0.5, 1],[2, 3, 4])
z	Result	REAL SIGNAL	x-y

Subtract Signal from Signal (Different Size)

ID	Description	Type	Expression
x	Argument	REAL SIGNAL	signal([0, 0.5, 1],[1, 2, 3])
y	Argument	REAL SIGNAL	signal([0, 0.25, 0.5, 1],[2, 3, 4, 5])
z	Result	REAL SIGNAL	x-y

If the axes of abscissae are different, the signal is interpolated to the additional abscissa values by linear interpolation.