symbols

I'm trying to create D3 SVG Symbols, with the symbol shape set dynamically based on a category property in the data. This will be part of a custom visual in PowerBI, so I'm using Typings library. From the examples I've seen online, the below code should work. var milestoneSymbols = this.milestoneContainer.selectAll('.path').data(viewModel.milestones); milestoneSymbols.enter().append('path'); milestoneSymbols.attr('d', d3.svg.symbol() .size(25) .type( function(d){ return d.typeSymbol}) ); milestoneSymbols.attr("transform", function(d,i) { return "translate("+ xScale(d.date) + "," + ((i %

For example, have the models: class Activity < ActiveRecord::Base belongs_to :event end class Event < ActiveRecord::Base has_many :activities attr_accessible :foo end I can get the activity's event foo by using activity.event.foo (simple enough). But I want to make a generic function that finds out first if an object has a belongs_to association and then get that object's foo through the belongs_to association (pretend that all objects have a foo through the belongs_to association)? So far I have the following with gives me a reflection: def get_foo(object) object.class.reflect_on_all

So I am trying to write a program that asks for you to create a password. I have a block of code that checks to see if the string entered by the user contains a symbol. I have the code set to exit the loop when the boolean value 'validPassword' equals true. string pleaseenterapassword = "Create a password:"; bool validPassword = false; Console.WriteLine(pleaseenterapassword); // Writes to the screen "Create a password:" string password = Console.ReadLine(); //Sets the text entered in the Console into the string 'password' bool containsAtLeastOneSymbol = password.Any(char.IsSymbol); if

I'm making a calculator in javascript and as of now it calculates: sin , cos , tan , cot , sec , csc and also arc and hyberbolic of all subtypes, sqrt , cbrt , y-th root , and pow . The problem is that I dont want to have the pow(x,y) as a function, I want to be able to type in for example: 2^3+2^4 # instead of pow(2,3)+pow(2,4) How do I go about to get the function typed in as shown above? Here's the calculator for viewing it: http://calcy.comze.com/ I assume you have the formula in a string. Here is how you can do it: Extend the numbr proto to have a pow method: Number.prototype.pow =

I'm writing a macro for function / macro composition (mixed combinations are possible). Inside of the macro I have to treat symbols which represent functions and those that name macros differently. It is because result function must work with any number of arguments (if 'lowest' function in composition can), and I cannot apply apply to macros. My question: how to determine what a given symbol represents: function or macro? Macro: CL-USER 8 > (macro-function 'bar) NIL CL-USER 9 > (macro-function 'lambda) #<Function LAMBDA 41100B7E94> Function: CL-USER 15 > (and (fboundp '+) (not (macro-function