calculator

问题 In a previous question I was told that Google passes UTF-8 encoded responses to queries. This solved a problem with non-breaking spaces (A0) being muddled after being passed by curl to my terminal. This was solved by piping the curl output to inconv and converting to UTF-8. However, even with this solution in place, I am still getting some strange output. Consider the following conversion of 2 m to feet: http://www.google.com/ig/calculator?hl=en&q=2%20m%20in%20feet This is the output I'm

问题 I'm trying to use a regular expression to solve a reverse polish calculator problem, but I'm having issues with converting the mathematical expressions into conventional form. I wrote: puts '35 29 1 - 5 + *'.gsub(/(\d*) (\d*) (\W)/, '(\1\3\2)') which prints: 35 (29-1)(+5) * expected (35*((29-1)+5)) but I'm getting a different result. What am I doing wrong? 回答1: I'm assuming you meant you tried puts '35 29 1 - 5 + *'.gsub(/(\d*) (\d*) (\W)/, '(\1\3\2)') ^ ^ Anyway, you have to use the

问题 In java i am trying to find the coefficients of a linear equation to find solution of linear equation in my calculator application for example : 3x +2*(6x-3) = 2 -4x what i am dying to get is the coefficients of x and the constant in the form ax+b =0 , in this particular example coefficient = 19 constant = -8 Please suggest a generalized idea 回答1: As already suggested by my comment: This may be arbitrarily complicated, depending on what exactly this parser should support. There are several

问题 Has anybody experience on drawing objects, by vertices e.g. Polygons and obtaining their surface and perimeter. The geometry will be drawn by hand using vertices or coordinates similar to https://play.google.com/store/apps/details?id=de.hms.xconstruction and then shapes formed. I need to obtain the surface of these closed shapes. Is there any available example on the net? Thanks in advance. 回答1: I think the following piece of code could be a good start. It basically draws lines between all

问题 Has anybody experience on drawing objects, by vertices e.g. Polygons and obtaining their surface and perimeter. The geometry will be drawn by hand using vertices or coordinates similar to https://play.google.com/store/apps/details?id=de.hms.xconstruction and then shapes formed. I need to obtain the surface of these closed shapes. Is there any available example on the net? Thanks in advance. 回答1: I think the following piece of code could be a good start. It basically draws lines between all

问题 I want to have a taxi fare calculation in my website. I have the following requirements: If Google Distance Matrix calculation show following distance kilometers, the rate should go like this: From 0 -10km = $65 (fixed price) + 11% 10km = $70 + 11% 15km = $80 + 11% 20km = $90 + 11% 25km = $100 + 11% 30km = $120 + 11% 30km above = $4 / km I put rate as $2 per km from 10 km above till 30km + $50 extra which result : if taxi if drived for 20km = 20km × $2 + $50 = $90 + 11% 21km = 21km × $2 + $50

问题 I want to have a taxi fare calculation in my website. I have the following requirements: If Google Distance Matrix calculation show following distance kilometers, the rate should go like this: From 0 -10km = $65 (fixed price) + 11% 10km = $70 + 11% 15km = $80 + 11% 20km = $90 + 11% 25km = $100 + 11% 30km = $120 + 11% 30km above = $4 / km I put rate as $2 per km from 10 km above till 30km + $50 extra which result : if taxi if drived for 20km = 20km × $2 + $50 = $90 + 11% 21km = 21km × $2 + $50

问题 I am working on a graphing calculator (you know, one where you type in a formula, let's say x^2 and you get the graph of that function). The problem I am having is how to offset and scale the view of graph as to show the interesting section of the function. I have exhausted all the 'simple' ideas I have had. Let me show some example: - sin(x) => interesting section is between y = [-1,1] and offset (0,0) - x^2 => interesting section is between y = [0, 100] and offset is (0,0). (100 has been

问题 I'm taking computing for GCSE and one of the tasks for our controlled assessment is to create a calculator with a GUI. I'm able to program a simple calculator without a GUI but I don't understand exactly how it can be done with a GUI. Below is a code that I got from teampython.wordpress.com, which I vaguely understand but it would be very helpful if someone could explain each individual step to me. # calc.py - a Python calculator from tkinter import * class Calc(): def __init__(self): self

问题 I have a jQuery-powered cost calculator, and I want to allow the webpage to send a summary of the calculator's values in an email. The server runs on classic ASP. How do I retrieve javascript variables with ASP? I understand that the ASP code runs before the page loads, and the javascript code runs only after the page is loaded, since the javascript is not runat="server". How can I store javascript variables so that I can retrieve them with ASP code on a processing page? calculator with