279   where "a" is `amplitude`, "s" is `start`, and "l" is `length`.
283   @param[in] start     Location where ramp begins to reduce from `amplitude` to 0
287 …ar LinearRampCoefficient(CeedScalar amplitude, CeedScalar length, CeedScalar start, CeedScalar x) {  in LinearRampCoefficient()  argument
288   if (x < start) {  in LinearRampCoefficient()
290   } else if (x < start + length) {  in LinearRampCoefficient()
291     return amplitude * ((x - start) * (-1 / length) + 1);  in LinearRampCoefficient()
302   @param[in]   start          Starting index to store components
309 CEED_QFUNCTION_HELPER int StoredValuesPack(CeedInt Q, CeedInt i, CeedInt start, CeedInt num_comp, c…  in StoredValuesPack()  argument
311   for (CeedInt j = 0; j < num_comp; j++) stored[(start + j) * Q + i] = values_at_qpnt[j];  in StoredValuesPack()
321   @param[in]   start          Starting index to store components
328 CEED_QFUNCTION_HELPER int StoredValuesUnpack(CeedInt Q, CeedInt i, CeedInt start, CeedInt num_comp,…  in StoredValuesUnpack()  argument
330   for (CeedInt j = 0; j < num_comp; j++) values_at_qpnt[j] = stored[(start + j) * Q + i];  in StoredValuesUnpack()