Computational and Applied Mathematics is the main scientific journal of the Brazilian Society of Computational and Applied Mathematics, which the field knows by the Portuguese acronym SBMAC.《Computational and Applied Mathematics》是巴西计算与应用数学学会的主要学术刊物，业内按葡萄牙语缩写叫它 SBMAC。
The title carries both halves of the subject and the journal treats them as one field. A paper may sit entirely in analysis or entirely in numerics, and it still has to show why the computation matters.题目把这一行的两半都写上了，刊物把它们当成一件事。论文可以整篇落在分析里，也可以整篇落在数值里，但都要说清计算为什么有意义。
Eight headings make up the publisher's list of areas. Applied mathematical analysis, control theory with partial differential equations, and discrete mathematics take the first three.出版方列出的方向共八项。应用数学分析、控制理论与偏微分方程、离散数学排在前三项。
Mathematical modelling and numerical linear algebra follow, then optimization and operations research.接着是数学建模与数值线性代数，再往后是最优化与运筹学。
Probability and stochastic methods close the list beside numerical analysis. From a modelled phenomenon to a solved system, the whole chain stays inside the journal.概率与随机方法挨着数值分析收尾。从被建模的现象到被求解的系统，整条链都在刊物范围内。
A manuscript has to go beyond routine applications or incremental numerical experiments. That sentence is the publisher's own, and it is the one the desk applies when a paper arrives.手稿不能停在例行应用上，也不能只是把数值实验再往前挪一小步。这句话是出版方自己的说法，也是编辑台收到稿子时用的尺子。
Tensors have become a recurring subject. A 2026 paper proves a Gautschi conjecture on subrange Jacobi polynomials, and another develops Hamiltonian and symplectic tensors in the T-product algebra.张量成了反复出现的题目。2026 年有篇论文证明了子区间雅可比多项式的 Gautschi 猜想，另有论文在 T 积代数里展开哈密顿张量与辛张量。
Quaternion linear algebra turns up as well. One 2026 article gives the singular value decomposition of generalized quaternion matrices and then puts it to use on data.四元数线性代数也出现了。2026 年有篇文章给出广义四元数矩阵的奇异值分解，随后把它用到数据上。
High-order schemes are a standing interest. A paper builds an eighth-order B-spline collocation method for the seventh-order KdV equation, and another reduces a cell-centred finite volume scheme.高阶格式是长期兴趣。一篇论文为七阶 KdV 方程搭了八阶 B 样条配点法，另一篇化简了单元中心有限体积格式。
Control theory enters through boundary problems. Event-triggered boundary control for quasi-synchronization of heterogeneous fractional systems appeared in 2026, beside observer-based boundary adaptive fuzzy control.控制理论从句边值问题进来。2026 年一篇处理异构分数阶系统的准同步，用的是事件触发边界控制，旁边是观测器型边界自适应模糊控制。
Epidemic and population models keep their place. A time-periodic nonlocal dispersal model with multiple strains was printed in the same volume, a few issues after a labour and capital model with seasonal cycles.传染病与人口模型守着自己的位置。同一卷里有带多毒株的时间周期非局部扩散模型，往前几期还有带季节周期的劳资模型。
Discrete mathematics is not decoration. One 2026 paper works out the structure of the sandpile identity element on Sierpiński gasket graphs, a question that has no continuous analogue.离散数学不是摆设。2026 年有篇论文厘清了谢尔宾斯基垫片图上沙堆恒等元的结构，这个问题没有连续版本可借。
Articles carry numbers instead of page ranges. All hundred latest records in the deposit have an empty page field, and the number belongs to the volume rather than to an issue.论文用编号而不是页码范围。存录里最新的一百条，页码一栏全是空的，编号归卷而不归期。
Papers are short by the standard of the field. The hundred latest carry an average of 2.8 authors, and single-author papers still appear in the same issues as five-author ones.按这一行的标准，这些论文不算长。最新的一百条平均 2.8 位作者，单人署名的论文与五人署名的论文还在同一批期号里。
History
The society founded the journal in 1981, three years after SBMAC itself was created in 1978, and it has carried the same title since.学会在 1981 年创办这份刊物，比 SBMAC 自己在 1978 年成立晚三年，刊名从那时起没有换过。
For its first three decades the society published the title itself. Three ISSNs still hang on the same record, the older numbers never withdrawn.最初三十年由学会自己出版。同一个记录上挂着三个 ISSN，旧号一直没有撤下。
In January 2013 the journal moved to Springer Science and Business Media, and the society announced the change on its own site rather than leaving it to the publisher.2013 年 1 月，刊物转到 Springer Science+Business Media，学会把这次移交登在自己的站上，没有交给出版方去宣布。
That notice is signed by three people, which is how a society transfer gets recorded: the editor-in-chief, the publications director and the president.那则通告有三个人落款，主编、出版主任与学会主席各自签名，学会移交就是要这样留痕。
Production sits in Heidelberg, where the publisher field of every record points, while the editorial side stays with the society in Brazil.制作放在海德堡，每条记录的出版方字段都指在那里，编辑那一头留在巴西的学会。
Electronic deposit is shorter than the journal. Crossref holds 3,061 records and the earliest of them belongs to volume 38, so the first decades exist only on paper.电子存录比刊物本身短。Crossref 里有 3,061 条记录，最早的一条落在第 38 卷，前几十年只存在于纸上。
Volume numbering has stayed at one volume a year since 1981, and 2026 is volume 46.卷号从 1981 年起一年一卷，2026 年是第 46 卷。
Two volumes can be open at once. In late October 2026 the deposit still takes in issues of volume 45 while volume 46 runs ahead of it.两卷可以同时在办。2026 年 10 月底，第 45 卷仍在收进期号，第 46 卷已经跑在前面。
Issue counts per volume climbed. Volume 45 carried at least ten issues, and volume 46 had reached its third by late October, so a volume now holds more issues than a quarter's worth.每卷的期数一路上升。第 45 卷至少出了十期，第 46 卷到 10 月底已到第 3 期，一卷装的期数早就超过一个季度的量。
The impact factor climbed and then settled. It went 2.239 in 2021, 2.998 in 2022, then 2.5 in both 2023 and 2024, and 2.3 in 2025.影响因子先升后稳。2021 年是 2.239，2022 年 2.998，2023 与 2024 都是 2.5，2025 年 2.3。
The five-year figure is 2.2 and the cited half-life is 3.6 years, which says citations arrive quickly and then stop rather than accumulating for a decade.五年影响因子是 2.2，半衰期 3.6 年，意思是引用来得快，随后就停，不会攒上十年。
Volume 2025 held 536 articles against a citation base of 5,866, a ratio that fits a journal read by people who need the result now.2025 年一卷收了 536 篇论文，背后的引用基数是 5,866 次，这个比例配得上「现在就要结果」的读者。
Open access is a minority share. Gold stands at 10.27 percent, and the rest of the volume goes out behind a subscription.开放获取只占少数。金色比例 10.27%，其余部分仍在订阅墙后发出。
The medical library still records three issues a year and a first year of 1998. Both entries are stale, and the volume numbering contradicts them without disturbing them.医学图书馆仍著录为一年三期、首年 1998。这两条都已过时，卷号与它们对不上，却也没人去改。
Editors
Two editors-in-chief share the desk, José Eduardo Souza de Cursi and Gabriel Haeser.主编由两人并列，分别是 José Eduardo Souza de Cursi 与 Gabriel Haeser。
Cursi has been on the masthead since before the move to Springer. He signed the 2013 notice in the role of editor-in-chief, which puts his tenure past a decade.Cursi 在转到 Springer 之前就已在名单上。2013 年那则通告他是以主编身份落款的，这一段任期已经超过十年。
The society keeps a publications director between the board and the membership. Elbert E. N. Macau held the post in 2013, and the office decides what the society prints beside the journal.学会在编委会与会员之间设了出版主任。2013 年这个位置是 Elbert E. N. Macau，刊物之外印什么由这个办公室定。
Headquarters are in São Carlos, in the state of São Paulo, and correspondence routes through that building rather than through a publisher office.学会总部在圣保罗州的圣卡洛斯，通信走那栋楼，不走出版方的办公室。
Submissions enter through Springer's platform, and the journal quotes a median of sixteen days from submission to first decision.投稿走 Springer 的平台，刊物公布从投稿到第一个决定的中位数是十六天。
Sixteen days covers the first decision and nothing after it. Most of that window is spent on the desk judgement the scope statement demands, not on review.十六天只覆盖第一个决定，之后的一律不算。这个窗口大半花在范围说明要求的编辑台判断上，不在评审上。
The journal runs topical collections, and one of them is open until January 2028. It is titled From Classical to Modern Analysis and gathers work across both halves of the subject.刊物办专题合集，其中一个开放到 2028 年 1 月。合集名叫 From Classical to Modern Analysis，收的是横跨两半的稿子。
Two further collections follow the United Nations development goals, one on affordable and clean energy and one on responsible consumption and production.另有两个合集跟着联合国的发展目标走，清洁能源一个，负责任的消费与生产一个。
Those collections are the board's only lever for setting an agenda. Ordinary issues are filled by arrival, and the sequence of a volume follows the order in which papers were accepted.这些合集是编委会唯一能定议题的杠杆。常规期号靠来稿填满，一卷里的次序就是录用的先后。
The society publishes more than one serial. Its catalogue lists a thematic series, a proceedings series and a line of short briefs, and the journal sits at the top of that list.学会不只出一份连续出版物。目录里有专题系列、会议录系列，还有一条短篇丛书，刊物排在这张单子的最上面。
Downloads reached 336.2 thousand in 2025. For a journal owned by a national society rather than a corporate publisher, that is a wide readership.2025 年的下载量到 33.62 万次。对一份归全国性学会所有、而非归商业出版方的刊物来说，这个读者面不算窄。
The masthead mixes Brazilian groups with editors from Europe and Asia, and the papers follow the same mix. A volume out of São Paulo reads as an international one.编委名单把巴西的团队与欧亚的编辑混在一起，论文的分布也一样。一本出自圣保罗的卷次读起来是国际刊物。
Book reviews and conference reports are absent. Research papers and the occasional preface to a collection are the whole of the content.书评与会议报道都没有。研究论文加上偶尔一篇合集前言，就是全部内容类型。