создает трехдиагональнйю матрицу
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| real(kind=wp), | intent(in) | :: | a(n) | |||
| real(kind=wp), | intent(in) | :: | b(n) | |||
| real(kind=wp), | intent(in) | :: | c(n) | |||
| real(kind=wp), | intent(in) | :: | r(n) | |||
| real(kind=wp), | intent(inout) | :: | u(n) | |||
| integer, | intent(in) | :: | n |