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| STBMV/DTBMV/CTBMV/ZTBMV | |
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| incx < 0 | x is stored backward in array x; that |
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| is, xi is stored in x((i−n)⋅incx+1). |
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| Use incx = 1 if the vector x is stored contiguously in | |
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| array x, that is, if xi is stored in x(i). Refer to “BLAS | |
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| Indexing Conventions” in the introduction to | |
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| Chapter 2. |
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Output | x | The updated x vector replaces the input. |
Notes These subprograms conform to specifications of the Level 2 BLAS.
If an error in the arguments is detected, the subprograms call error handler XERBLA, which writes an error message onto the standard error file and terminates execution. The standard version of XERBLA (refer to the end of this chapter) can be replaced with a
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