(-) subtraction operator, sign changes
X-Y -Y
scalar or vector or matrix of numbers, polynomials or
rationals. It may also be a syslin list.
scalar or vector or matrix of numbers, polynomials or
rationals. It may also be a syslin list.
Subtraction
For numeric operands subtraction as its usual meaning. If one of
the operands is a matrix and the other one a scalar then the operation is
performed element-wise. For X - Y, if Y==[] then X is returned; if
X==[] then -Y is returned.
Subtraction may also be defined for other data types through "soft-coded" operations (see overloading).