calc | Calculator library | Apps library

 by   qertoip Ruby Version: Current License: No License

kandi X-RAY | calc Summary

kandi X-RAY | calc Summary

calc is a Ruby library typically used in Apps applications. calc has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

Calc is safe, simple, pure Ruby mathematical expressions evaluator (calculator) library. Although based on Ruby 'eval', it takes special care to sanitize the expression. Calc supports all basic mathematical operations +, -, *, / and the power function (through ** operator). Calc also supports parenthesis and nesting. Calc does NOT support advanced mathematical functions like trigonometry, logarithm, etc. Calc plays well with Rails ActiveModel::Validations. If the supplied expression is invalid (nil, blank, or syntax error), it returns the expression itself verbatim, thus allowing to handle errors via Rails validations.
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            kandi-support Support

              calc has a low active ecosystem.
              It has 9 star(s) with 2 fork(s). There are 1 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              calc has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of calc is current.

            kandi-Quality Quality

              calc has 0 bugs and 0 code smells.

            kandi-Security Security

              calc has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              calc code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              calc does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              OutlinedDot
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              calc releases are not available. You will need to build from source code and install.
              Installation instructions are not available. Examples and code snippets are available.

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            calc Key Features

            No Key Features are available at this moment for calc.

            calc Examples and Code Snippets

            No Code Snippets are available at this moment for calc.

            Community Discussions

            QUESTION

            Add percentage change between two points annotation to chart while maintaining value points
            Asked 2021-Jun-15 at 17:30

            I have the following chart that calculates premium for each month.

            ...

            ANSWER

            Answered 2021-Jun-15 at 17:29

            when using a calculated column for setColumns,
            you can use a custom function, instead of the calc: "stringify"

            the function will receive two arguments,
            the data table and the row index.
            the function should return the value to be displayed (the annotation).

            Source https://stackoverflow.com/questions/67987469

            QUESTION

            How to create in C or C++ the contents value of Sig type object for digital signature in PDF?
            Asked 2021-Jun-15 at 06:14

            We are programmatically creating PDF using our in house lib (C++) by adding all the required objects so that PDF readers can render them properly. Currently we are enhancing the lib to support digital signatures in PDF. Our users will use USB token or Windows certificates to sign the PDF. On studying raw PDF file with digital signature, we were able to make sense of all the objects except for the contents of Sig type object.

            ...

            ANSWER

            Answered 2021-Jun-10 at 16:48

            Ok, the signature container is embedded correctly.

            But there are issues with the signature container itself:

            • Both in the SignedData.digestAlgorithms collection and in the SignerInfo.digestAlgorithm value you have used the OID of SHA1withRSA, but that is a full signature algorithm, not the mere digest algorithm SHA1 expected there.

            • Then the SHA1 hash of the signed bytes is BB78A402F7A537A34D6892B83881266501A691A8 but the hash you signed is 90E28B8A0D8E48691DAFE2BA10A4761FFFDCCD3D. This might be because you hash buffer2 and

              buffer2 has empty contents data (/Contents <>)

              The hex string delimiters '<' and '>' also belong to the contents value and, therefore, must also be removed in buffer2.

            Furthermore, your signature is very weak:

            • It uses SHA1 as hash algorithm. SHA1 meanwhile has been recognized as too weak a hash algorithm for document signatures.
            • It doesn't use signed attributes, neither the ESS signing certificate nor the algorithm identifier protection attribute. Many validation policies require such special attributes.

            Source https://stackoverflow.com/questions/67667032

            QUESTION

            google sheet : generate increment number
            Asked 2021-Jun-15 at 03:01

            I use this formula:

            ...

            ANSWER

            Answered 2021-Jun-15 at 03:01

            Give a try on below formula. Adjust sheet name for other sheet. I have tested the formula to same sheet.

            Source https://stackoverflow.com/questions/67979307

            QUESTION

            Can't build test suite in cmake project with Boost.Test on Apple Silicon
            Asked 2021-Jun-14 at 12:34

            I'm following JetBrains's tutorial on an Apple Silicon computer. I installed boost with MacPorts (sudo port install boost), the version is 1.71 The build of tests.cpp file fails with the following error:

            ...

            ANSWER

            Answered 2021-Jan-03 at 12:57

            QUESTION

            VBA UDF for LO Calc that takes several arrays as arguments or produces array
            Asked 2021-Jun-14 at 11:59

            I have trouble finding easy examples how to write simple UDF's (user defined functions) for LO Calc, that uses arrays as arguments or gives arrays as output e.g. array functions.

            I need simple example UDF that takes array and gives single number as output, like count() function.

            I need simple example where UDF that is array function, that takes two arrays and produces array that is Cartesian product of two arrays.

            It would be nice if to have a comment for every step.

            ...

            ANSWER

            Answered 2021-Jun-14 at 11:59

            The simplest UDF for the first case looks like this:

            Source https://stackoverflow.com/questions/67955396

            QUESTION

            values are getting disappeared after selecting the value and going to next dropdown
            Asked 2021-Jun-14 at 06:46

            i want to remove the values once user select it from dropdown so that the same value doesn't come on to the next dropdown, but the value which is select disappears on adding the next row or dropdown i mean the placeholder of dropdown goes missing. This is all what i have tried yet and you can find the codesandbox link here

            ...

            ANSWER

            Answered 2021-Jun-14 at 06:42

            So first off, you can disable each selectable value based off if the inputs contain the selected value with a computed object

            Source https://stackoverflow.com/questions/67965649

            QUESTION

            How to remove spaces from special characters?
            Asked 2021-Jun-14 at 01:53

            So i was working on an python assignment that had this question: Define a function that accepts a sentence and calculate the number of letters(Upper-Lower separately),words,digits,vowels,consonant and special symbols in it. I wrote the following code for this:

            ...

            ANSWER

            Answered 2021-Jun-14 at 01:02

            Just replace the spaces in string a with empty strings prior to computing scount:

            Source https://stackoverflow.com/questions/67963738

            QUESTION

            Calculate Profit/Capital Gains on Sold Inventory/Shares
            Asked 2021-Jun-13 at 10:44

            I have a Google Sheet (Excel formulas apply) containing 2000 transactions that are structured like below:

            Link to Google Sheet with example calcs here.

            I need to calculate the Profit (ie. FIFO Capital Gains) for every sell order and place this amount in the 5th column (as pictured). This can be achieved with either traditional formulas or with a Google App Script. Preferably in Google Sheets.

            I'm finding it difficult via formulas to match the sell order with the buy as you proceed down the table as some sell orders are split across multiple buy lines. If anyone could help with a formula or solution to tackle this problem it would be much appreciated. This is an updated question to the original here.

            ...

            ANSWER

            Answered 2021-Jun-13 at 10:44
            PRELIMINARY CONTEXT

            Screenshot below refers:

            Google sheets here

            IMPORTANT UPDATE: re: 2000+ rows, see link in my last comment (for OneDrive template, s.t. expiry, and bottom of this proposal for screenshot of error "too large to import")

            fyi: (Office 365 - Excel - fns. such as 'filter' etc., so #Name! will be ubiquitous upon opening this link; however, sharing this should serve as a convenient means to replicate above screenshot in the correct version of Excel)

            REQUIREMENTS
            1. Office 365
            2. Adequate space to the right or ability to utilise extra sheet for calcs as req.
            APPROACH

            High-level | Take-aways

            • Relies on 2 additional tables: Qty 'depletion' table (here - G:P) and corresp. Profit Vectors (here - R:Z)

            • Compressed representations (2x2 tables, per Summary Tables, here: rows 19:32) could be explored to simplify matters (albeit these are still Work in Progress ['WiP'])

            • VB could be attractive alternative too

            Low-level | Procedural

            1. Single-cell function could not be found without exceptional complication (however, suspect it could be possible e.g. using FilterXML?)
            2. Qty label transposes filtered negative quantities (grey shaded, G3: J3)
            3. These values are depleted in turn (from left to right, i.e. dependency on having data sorted in ascending order by date (in this depiction, data first sorted by 'fruit' as these are assumed to be independent in the context of the profit calc.)
            4. For example, -5 quantity (G3) offset by +10 (B3) to yield +5 which, in turn contributes towards the -35 qty (H3) to yield -30. No further contribution can be made (left to right); next row (5): +20 avail (given), no offset against -5 (G3, already 'reimbursed', so 20 offset against -30 (H4) to yield -10, and so forth.
            5. Worksheet set up to accommodate longer list of fruit / profits
            6. Result table of residual 'quantities' (~ G:J) applied to price differential to yield 'profit vectors' (R:U) which are summed against corresponding negative quantities to produce Profit score (yellow shaded cells)
            FUNCTIONS

            Salient functions (all of which should be available within Google Sheet, but for completeness):

            1) Profit calc. (E4, drag down):

            Source https://stackoverflow.com/questions/67930020

            QUESTION

            OpenCV haarCascade whit Optical flow tracking
            Asked 2021-Jun-12 at 22:56

            i'm trying to track objects with Optical flow in android after using a Haar Cascade detection like in the code below and i have this error can anyone help me with this

            E/cv::error(): OpenCV(3.4.12) Error: Assertion failed ((npoints = prevPtsMat.checkVector(2, CV_32F, true)) >= 0) in virtual void cv::{anonymous}::SparsePyrLKOpticalFlowImpl::calc(cv::InputArray, cv::InputArray, cv::InputArray, cv::InputOutputArray, cv::OutputArray, cv::OutputArray), file /build/3_4_pack-android/opencv/modules/video/src/lkpyramid.cpp, line 1259 E/org.opencv.video: video::calcOpticalFlowPyrLK_15() caught cv::Exception: OpenCV(3.4.12) /build/3_4_pack-android/opencv/modules/video/src/lkpyramid.cpp:1259: error: (-215:Assertion failed) (npoints = prevPtsMat.checkVector(2, CV_32F, true)) >= 0 in function 'virtual void cv::{anonymous}::SparsePyrLKOpticalFlowImpl::calc(cv::InputArray, cv::InputArray, cv::InputArray, cv::InputOutputArray, cv::OutputArray, cv::OutputArray)' E/AndroidRuntime: FATAL EXCEPTION: Thread-2 Process: opencv.org, PID: 31380 CvException [org.opencv.core.CvException: cv::Exception: OpenCV(3.4.12) /build/3_4_pack-android/opencv/modules/video/src/lkpyramid.cpp:1259: error: (-215:Assertion failed) (npoints = prevPtsMat.checkVector(2, CV_32F, true)) >= 0 in function 'virtual void cv::{anonymous}::SparsePyrLKOpticalFlowImpl::calc(cv::InputArray, cv::InputArray, cv::InputArray, cv::InputOutputArray, cv::OutputArray, cv::OutputArray)' ]

            ...

            ANSWER

            Answered 2021-Jun-12 at 22:56

            matPrevGray is empty. that's what it's saying.

            Source https://stackoverflow.com/questions/67950231

            QUESTION

            " samples: %r" % [int(l) for l in lengths]) ValueError: Found input variables with inconsistent numbers of samples: [219870, 0, 0]
            Asked 2021-Jun-12 at 20:22

            I'm trying to train some ML algorithms on some data that I collected, but I received an error for input variables with inconsistent numbers of samples. I'm not really sure what variables needs to be changed or not. I've posted my code below to give you a better understanding of what I'm trying to accomplish:

            ...

            ANSWER

            Answered 2021-Jun-12 at 12:14

            The file has to be opened in binary mode.

            open(DATA_FILE, 'rb')

            Source https://stackoverflow.com/questions/67948722

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install calc

            You can download it from GitHub.
            On a UNIX-like operating system, using your system’s package manager is easiest. However, the packaged Ruby version may not be the newest one. There is also an installer for Windows. Managers help you to switch between multiple Ruby versions on your system. Installers can be used to install a specific or multiple Ruby versions. Please refer ruby-lang.org for more information.

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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            gh repo clone qertoip/calc

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            git@github.com:qertoip/calc.git

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