Overload List
| # | Signature | Description |
|---|---|---|
| 1 | TMtxVecInt CumSum(TMtxVecInt Vec, Int32 VecIndex, Int32 Index, Int32 Len) | Calculate the cumulative sum for Vec elements [VecIndex]..[VecIndex+Len-1]. |
| 2 | TMtxVecInt CumSum(Int32 Index, Int32 Len) | Cumulative sum. |
Overload 1: TMtxVecInt CumSum(TMtxVecInt Vec, Int32 VecIndex, Int32 Index, Int32 Len)
Calculate the cumulative sum for Vec elements [VecIndex]..[VecIndex+Len-1].
| # | Name | Type | Description |
|---|---|---|---|
| 1 | Vec | TMtxVecInt | source TVecInt or TMtxInt |
| 2 | VecIndex | Int32 | |
| 3 | Index | Int32 | start index |
| 4 | Len | Int32 | element count |
Result: stored in self (calling object), returns self for chaining
Remarks:
Store the results in calling object elements [Index]..[Index+Len-1]. Size and Dew.Math.TMtxVecInt.IntPrecision properties of the calling object must be set explicitly. Exception is raised if Dew.Math.TMtxVecBase.ConditionCheck property is True and array borders are overrun.
Overload 2: TMtxVecInt CumSum(Int32 Index, Int32 Len)
Cumulative sum.
| # | Name | Type | Description |
|---|---|---|---|
| 1 | Index | Int32 | start index |
| 2 | Len | Int32 | element count |
Result: stored in self (calling object), returns self for chaining
Remarks:
Calculate the cumulative sum for calling object elements [Index]..[Index+Len-1] in-place. An exception is raised if Dew.Math.TMtxVecBase.ConditionCheck is true and array borders are overrun.
Examples
Matrix a;
a.SetIt(2,2,false,new double[] {1,2,3,4};
a.CumSum(0,4); // a = new double[] {1,3,6,10}