Questions tagged [calculus]
Use this tag for challenges involving integration or differentiation of functions.
26
questions
15
votes
5answers
857 views
Solve a separable differential equation
A first order separable ordinary differential equation is (arguably) the easiest type of differential equation to solve, and takes the form of
$$N(y)\frac{dy}{dx} = M(x) \\
y(x_0) = y_0$$
For two ...
4
votes
5answers
247 views
String-wise calculus (i)
This will turn into a series involving other aspects of calculus, including using the "derivative" of a string to find "stationary points" etc, as well as "integration" of sentences
Introduction
If ...
7
votes
0answers
384 views
Goldbach's Comet
Back to back challenges I guess. Hopefully this one is more clear than the last.
Background
I was playing around with Goldbach's conjecture, and decided to plot evens (on the x-axis) vs the number ...
8
votes
6answers
302 views
Simplify and Take Partial Derivative to a Polynomial String
Introduction
Write a program to calculate the partial derivative of a polynomial (possibly multivariate) with respect to a variable.
Challenge
Derivatives are very important mathematical tools that ...
18
votes
10answers
992 views
Approximate definite integrals using Riemann sums
Left and right Riemann sums are approximations to definite integrals. Of course, in mathematics we need to be very accurate, so we aim to calculate them with a number of subdivisions that approaches ...
6
votes
7answers
458 views
It's a Slippery Slope
There has not been a challenge regarding slope fields, as a far as I can tell. So, I might as well make one.
The challenge
Given:
A black box function f which ...
12
votes
10answers
1k views
The Lehmer-Comtet sequence
The Lehmer-Comtet sequence is a sequence such that a(n) is the nth derivative of f(x) = xx with respect to x as evaluated at x = 1.
Task
Take a non-negative integer as input and output the nth term ...
29
votes
33answers
5k views
The Pedant's Cosine
My boss just told me to write a cosine function. Being a good math geek, my mind immediately conjured the appropriate Taylor Series.
...
37
votes
5answers
3k views
āPāiā =ā= ā3ā.ā2ā
Inspired by this video of Infinite Series.
Introduction
Pi is defined as the ratio of the circumference to the diameter of a circle. But how is a circle defined? Usually a circle is defined as the ...
15
votes
23answers
1k views
Find the rate of change at a point on a polynomial
Given the equation of a polynomial and an x-coordinate find the rate of change of the point at that x-coord on the curve.
A polynomial is in the form: axn + axn-1 + ... + ax1 + a, where a Ļµ Q and n Ļµ ...
6
votes
16answers
919 views
Write a Sine-Deriving Machine
The Challenge
Your challenge is to write a program that evaluates the following function:
f(x, t) = d^x / dt^x (sin t)
That is, the x-th derivative of sin t. In case you aren't familiar with ...
9
votes
1answer
346 views
Approximate the Fransén-Robinson constant
Given an input n, output the value of the FransƩn-Robinson constant with n digits after the decimal place, with rounding.
Rules
...
5
votes
3answers
186 views
Taylor Series of a Function with Periodic Derivatives
Taylor series are a very useful tool in calculating values of analytic functions that cannot be expressed in terms of elementary functions, using only information about that function at a single point....
11
votes
3answers
2k views
Evaluate the Riemann Zeta Function at a Complex Number
Introduction
I found this question that was closed because it was unclear, yet it was a nice idea. I'll do my best to make this into a clear challenge.
The Riemann Zeta function is a special function ...
4
votes
3answers
126 views
Symbolic Differentiation of Composed Functions
Symbolic Differentiation 2: Back on the Chain Gang
Task
Write a program that takes in a certain sort of function from stdin and differentiates it with respect to x, using the chain rule.* The input ...
2
votes
1answer
228 views
Build a Calculus Interpreter I [closed]
A struggling manufacturer named Tennessee Instrumental is desperate to get into the calculator business. Problem is, they don't have any software engineers on payroll, and the deadline is coming up ...
25
votes
9answers
3k views
Approximate ā«((e^x)/(x^x))dx
You are to approximate the value of:
Where your input is I.
Rules
You may not use any built-in integral functions.
You may not use any built-in infinite ...
15
votes
1answer
357 views
Do the Chain Rule
We've had a lot of challenges on differentiation and integration, but none on just solving related rates problems. So in this challenge, you will get a bunch of derivatives (They will be numeric, not ...
21
votes
2answers
834 views
Symbolic Integration of Polynomials
Apply an indefinite integral to a given string. The only rules you will be using are defined as such:
ā«cx^(n)dx = (c/(n+1))x^(n+1) + C, n ā -1
c, C, and n are all constants.
Specifications:
You ...
19
votes
12answers
2k views
21
votes
12answers
2k views
Symbolic Differentiation of Polynomials
Symbolic Differentiation 1: Gone Coefishin'
Task
Write a program that takes in a polynomial in x from stdin (1 < deg(p) < 128) and differentiates it. The input polynomial will be a string of ...
7
votes
1answer
493 views
Evaluate CDF of Student-t distribution
The goal of this codegolf is evaluating the cumulative distribution function of the student-t probability distribution. This is not trivial since there is no closed form and the function is dependent ...
52
votes
9answers
4k views
Help me with differential calculus!
I love programming and know every language, but I suck at math. Unfortunately, my school requires that computers students must take a year of calculus. There's a test next week, and I don't know any ...
5
votes
5answers
536 views
Build the blancmange function
The blancmange function is used as an example in basic calculus of a function that is continuous everywhere, but differentiable nowhere. It achieves this effect by using the sums of ever-diminishing ...
6
votes
2answers
3k views
Determine stability of a system using the Routh-Hurwitz stability criterion
The Routh-Hurwitz is a criteria which serves to prove or disprove the stability of an electric control system.
Idea
Given a system which has an equation of the form ...
6
votes
1answer
228 views
Numerical Integration through Plotting
Inspired by this on Spiked Math:
(source: spikedmath.com)
In this code golf, you are going to write a numerical integrator. Instead of weighting, you first plot on a graphic canvas pixel-by-pixel ...
