NEWS

---

nlsic 1.2.0 (2026-01-28)

• nlsic(): added reuse of jacobian in non linear iterations
  • con$reuse_jac=TRUE (do it by default)
  • con$max_reuse=5L (default maximal number of jacobian reuses)
• nlsic(): con$btfrac default value is brought to 0.8 instead of 0.5.
• lsi() and lsi_ln() return x with aqr attribute containing QR decomposition of matrix a. This is used to spare some calculations in non linear iterations

nlsic 1.1.1 (2025-06-27)

• ls_ln() and ls_0(): fixed case when rhs, b, is a multi-column matrix

nlsic 1.1.0 (2025-05-16)

• lsie_ln(): added mnorm and x0 parameters
• lsi_ln(): rewritten from scratch to use lsie_ln() recursively
• added pnull() and ls_0() functions
• ls_ln() now gets mnorm and x0 parameters
• complited unit tests
• warning() is called in problematic situations. So user can intercept and debug them

nlsic 1.0.4 (2023-06-26)

• nlsic(): fixed error reporting when step has NA
• nlsic(): fixed error reporting when inequalities are not satisfied

nlsic 1.0.3

• nlsic(): fixed error when par is a matrix and u=NULL
• nlsic(): added paro field in returned result with original structure of par

nlsic 1.0.2 (2022-04-12)

• now, lsi() returns NA vector if rhs is all NA.

nlsic 1.0.1 (2022-01-11)

• Added a NEWS.md file to track changes to the package.
• minor fixes in documentation