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Development

How I know User Account has been disable from AWS Backend

I have a user in AWS User Pools and I have disable this user from setting.So my question is how I get user account status from my App.

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Development

Why does fsolve seem not iterate towards the solution?

I am trying to sovle a two non-linear equation system using fsolve and dogleg method. My objective function along with its jacobian is like this function [F jacF]= objective(x) F(:,1) = ((((x(:,2)./10).*k).*(x(:,1)./100)).^2).*(rZ – Rs) +(( Cmax .* ( x(:,1)./100 ) ).^2).*( w.^2.*(rZ – Rs) ) – (((x(:,2)./10).*k).*(x(:,1)./100)); F(:,2) = (x(:,2).*k).^2.*(iZ – w.*Ls) + (x(:,2).*k).^2.*x(:,1).*((w.*Ls)./200) + […]

using Switch-case statement to pull random playing card rank and suit to show user

I’m to set up Enumeration outside the main function and use a void PlayingCard() to pull the enum rank and suit to display a rank and suit to the user. But I am having a difficult time writing the right code to make it work how I want it to work. I am fairly new […]

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Development Laravel

Outline Validation errors in dynamic fields – Laravel

In my form, there are dynamic fields (using jQuery). I am trying to red outline these fields (using is-invalid) when validations fails for this particular field. I have added a unique id to each field, now I am trying to red outline the field who are invalid. For the name field, I have done the […]

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Development

Calculating the ratio of two columns

Dataframe with four columns: x1 x2 x3 x4 Desired output: x1/x2 x1/x2 x1/x3 x2/x3 x2/x4 x3/x4 I want to create new columns which are ratios of the original columns. Only way I could think of is to do manually: df[‘x1/x2’] = df[‘x1’]/df[‘x2’] However, I am going to have over 20 columns in the original data […]

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Development

Getting interrupted by signal 11: SIGSEGV

All I know is that the error occurs when this branch gets executed and the weights from it get passed down to tf.data.experimental.sample_from_datasets: # … elif pretrain_cfg.schedule == PretrainSchedule.CONVERGE_LINEARLY: logger.info(‘[%s] – Pretrain: Using CONVERGE_LINEARLY schedule’ % self.name) a = tf.minimum(tf.constant(1.0, dtype=tf.float64, shape=(1,)), global_step / max_pretrain_steps) b = tf.maximum(tf.constant(0.0, dtype=tf.float64, shape=(1,)), 1 – global_step / max_pretrain_steps) […]

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Development

How do I display a calculation from table entries?

My code should calculate the vehicle’s fuel consumption by dividing the fuel tank volume by the distance traveled, then display the answer in the table row ‘Fuel consumption’.Then, the ‘Most efficient’ colom should display an asterisk in the row of the most efficient vehicle. The homework says to use an object but I just don’t […]

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Development

How to fix “Could not locate bower” error while migrating from Vaadin 13 to Vaadin 14

I am trying to migrate my Vaadin application from 13th version to 14th. I am following the migration guide: https://vaadin.com/docs/v14/flow/v14-migration/v14-migration-guide.html step by step. Everything is going well till I have to upgrade Polymer2 to Polymer3 following this guide: https://vaadin.com/docs/v14/flow/v14-migration/migration-tool.html Executing the following command mvn vaadin:migrate-to-p3 returns the com.vaadin.flow.migration.MigrationToolsException: Could not locate bower. Install it manually […]

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Development

How to filter a array value in GraphQL using GoLang

In a GraphQL query I want to pass $filter to fetch values from a array which is written in GoLang. The output is mentioned below. Sample Code- if args.Filter != “” && args.Filter != Relay.NILQUERY { var err error val := reflect.Indirect(reflect.ValueOf(&Summary{})) arrResData, err = Relay.Filter(string(args.Filter), val, arrResData) if err != nil { return nil, […]

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Development

Why is there no Matrix3x3 in the System.Numerics namespace? c#

I am trying to make a little GUI library in c#, but after doing some research on matrix transformations I found out that I need a Matrix3x3 to store rotation, scale, and translation of a Vector2. But in the C# System.Numerics there is only a Matrix3x2 or Matrix4x4? Could I use one of those instead? […]