Microsoft/calculator

Incorrect result for exponational and logarithmic functions with exact results

Open

#574 建立於 2019年7月5日

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 (7 留言) (0 反應) (0 負責人)C++ (16,196 star) (2,422 fork)batch import
Area: User ExperienceBugPri: 3help wantedtriage approved

描述

Describe the bug The below example shows a case that shown answer (2) doesn't match the real answer log(e^2)/log(e)-2 != 0

Steps To Reproduce

Steps to reproduce the behavior:

  1. Go to Scientific mode
  2. enter log(e^2)/log(e^1)-2
  3. See error

Expected behavior log(e^2)/log(e^1)-2 should be 0 as base changing formula for logarithms: LaTex

Screenshots non-zero result

Device and Application Information

  • OS Build: 10.0.17134.0
  • Architecture: X64
  • Application Version: 10.1905.28.0
  • Region: zh-CN
  • Dev Version Installed: False

Additional context This is a new issue related with #309 and #222 Requested Assignment I'm just reporting this problem. I don't know how to fix it.

貢獻者指南

技術棧
cpp
領域
desktop
議題類型
bug
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
1-3 hours
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
C++ basicslogarithmic functionscalculator codebase
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
45
研究方向
Examine the calculation engine for logarithmic functions in the repository, focusing on files like 'CalcEngine.cpp' or 'CalculatorManager.cpp' that handle scientific mode computations. Review the implementation of log and exponent functions to see if there is a precision issue or incorrect formula application. Check the related issues #309 and #222 for previous attempts or context.