| SubT(SpanT, SpanT) | Pointwise inplace subtraction of two equally sized spans. |
| SubT(SpanT, T, SpanT) | Pointwise subtraction of a scalar from a span. |
| SubT(SpanT, SpanT, SpanT) | Pointwise subtraction of two equally sized spans. |
| SubT(T, SpanT, SpanT) | Pointwise subtraction of a span from a scalar. |