F_SAMAX_VAL/F_DAMAX_VAL/F_CAMAX_VAL/F_ZAMAX_VAL | Maximum absolute value and location | |||||||||||
| INTEGER*8 | INCX, K, N |
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| REAL*8 | R |
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| COMPLEX*16 | X( * ) |
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| SUBROUTINE F_ZAMAX_VAL (N, X, INCX, K, R) |
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Input | N | Number of elements of vector x. |
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| X | REAL or COMPLEX array, minimum length | ||||||||||
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| (N - 1) x incx + 1. |
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| INCX | Increment for the array x. A vector x having component | ||||||||||
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| xi, i = 1,..., n, is stored in an array X() with increment | ||||||||||
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| argument incx. If incx > 0 then xi is stored in | ||||||||||
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| X (1 + (i - 1) x incx). If incx < 0 then xi is stored in | ||||||||||
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| X (1 + (N - i) x incx). incx = 0 is an illegal value. | ||||||||||
Output | K | Displacement returned by the routine. The smallest | ||||||||||
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| offset or index such that |
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| R | xk= max( |
| Re( xi) |
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| Im( xi) |
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| REAL scalar. The largest component of the vector x. | |||||||||||
154HP MLIB User’s Guide