`+` and `-`

Arithmetic addition and subtraction in AUX work across scalars, vectors, audio signals, text, time sequences, and null values.

Syntax

z = x + y
z = x - y

x	y	z
`NUL`	anything	same as the non-null operand
`SCAL`	anything	same shape/type as the other operand when supported
`VCT`	`VCT`	`VCT`
`VCT`	`AUD`	`AUD`
`TSEQ`	array/time-sequence forms	`TSEQ` when supported

Allowed types: SCAL, VCT, AUD, TEXT, TSEQ, NUL
Not allowed: CLASS, CELL

For SCAL + VCT and SCAL + AUD, the scalar is applied to the entire array or signal.
For VCT + VCT and VCT + AUD, the operation proceeds while both operands have values available.
For AUD + AUD, the operation is time-based and is applied wherever both signals are present.
For SCAL + TSEQ, the scalar is added to the value of the time sequence at each time point.
For TSEQ + TSEQ, both operands must have the same number of time points, although the actual times do not need to match.
When both operands are grouped as matrices, they must have the same number of groups (rows).
Addition is commutative. Subtraction is not.

AUX> noise(30)@-10 + tone(200,10)@-10 >>50
z =
audio (0.0ms~30.0ms) (50.0ms~60.0ms)

Plus/minus example 1

AUX> tone(100,100)@-6 + tone(200,100)@-6 >>50
z =
audio (0.0ms~150.0ms)

Plus/minus example 2

Current source basis: