I haven't found a built-in conjunction function, so you might find helpful my workaround:

For simple domain restrictions, you can use a product of conditions: link

For complex piecewise functions, you can use this hack: link

Answer from Vasily Mitch on Stack Exchange
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Desmos
cl.desmos.com › questions
How can I graph a piecewise function in Desmos? - Questions - Computation Layer Support Forum
April 28, 2023 - Hi everyone, I’m currently trying to graph a piecewise function in Desmos, but I’m not quite sure how to do it. The function I’m working with is f(x) = { 2x + 1 if x ≤ 0, 4x - 3 if x > 0 }. I’ve tried entering it as two …
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Desmos
desmos.com › calculator › 3zabdb3vgt
Piecewise function | Desmos
Explore math with our beautiful, free online graphing calculator. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more.
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Desmos
desmos.com › calculator › 90iutcrc5f
Piecewise Defined Functions and Continuity | Desmos
Explore math with our beautiful, free online graphing calculator. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more.
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Quora
quora.com › How-can-I-plot-sequences-with-a-piecewise-function-by-Desmos
How to plot sequences with a piecewise function by Desmos - Quora
Stems: { (n, t) : n = 1…N, t = 0…a(n) } (Desmos will render many segments; use caution for performance). Label terms using text expressions or the label toggle. ... Use question-mark-colon (?:) conditional or piecewise(...) function — both work.
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Desmos
cl.desmos.com › questions
Plotting Piecewise Functions in CL Desmos - Questions - Computation Layer Support Forum
May 13, 2023 - Hi everyone, I’m new to CL Desmos and I’m having trouble plotting piecewise functions. I’ve tried using the “conditional” command, but I’m not getting the results I’m expecting. Can someone help me figure out the correct…
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Brainly
brainly.com › mathematics › high school › how do you graph piecewise functions on desmos?
[FREE] How do you graph piecewise functions on Desmos? - brainly.com
For a piecewise function such as y={x2x+2​if x<0if x≥0​, you would enter it in Desmos as a set of conditions following the syntax shown above.
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YouTube
youtube.com › mrdaveblev
Piecewise Functions on Desmos - YouTube
Using Desmos to Graph and Evaluate Piecewise Functions
Published   January 22, 2018
Views   2K
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My Maths Club
mymathsclub.com › home › articles on calculus › how to do piecewise functions on desmos graph calculator?
How to do piecewise functions on Desmos Graph Calculator?
November 3, 2024 - will be useful to us in the study of limits, continuity, and the derivative as examples and counterexamples of functions having certain properties. Here in this article you’ll typically learn how to graph a piecewise functions on desmos graphing calculator.
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Math Vault
mathvault.ca › home › algebra › desmos: a definitive guide on graphing and computing
Desmos: A Definitive Guide on Graphing and Computing | Math Vault
August 5, 2022 - Well, despair not, for there is a way out when you’re with Desmos. Indeed, if an equation/inequality is expressed in terms of some parameter(s), which is itself defined as a list of multiple numbers, then multiple graphs can be created simultaneously for each of these numbers once and for all. Hmm, what are we talking about here? Here’s an accompanying picture to help us out: ... As you can see here, by defining a function with the dummy parameter $a$, which is itself defined as a list with the numbers $1$, $2$, $3$ and $4$, we were able to graph a total of four functions simultaneously with a mere two lines.
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Desmos
desmos.com › calculator › a62dhensom
Practice for Graphing Piecewise Functions | Desmos
Explore math with our beautiful, free online graphing calculator. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more.
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Oreate AI
oreateai.com › blog › unlocking-piecewise-functions-in-desmos-a-friendly-guide › 1e7ebe37ba71be4a3740a935b7b4d4ba
Unlocking Piecewise Functions in Desmos: A Friendly Guide - Oreate AI Blog
3 weeks ago - So, it becomes y = x^2 {. Inside those braces, you specify the condition for that particular piece. For our example, if we want y = x^2 to only apply when x is less than 0, we'd write x < 0. So now we have y = x^2 {x < 0}. To add another piece, you simply hit Enter to create a new line in Desmos and repeat the process...
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TechBloat
techbloat.com › home › how to add piecewise functions in desmos
How to Add Piecewise Functions in Desmos - TechBloat
January 22, 2026 - Clarity here ensures smooth plotting and avoids errors. Next, familiarize yourself with Desmos’s syntax for piecewise functions. Desmos uses curly braces {} to specify multiple expressions, separated by commas, each associated with their interval conditions.
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CK-12 Foundation
ck12.org › all subjects › algebra i › representing linear functions › how do you graph a piecewise function on desmos?
Flexi answers - How do you graph a piecewise function on Desmos? | CK-12 Foundation
September 11, 2025 - Graphing a piecewise function on Desmos can be accomplished by following the steps below: Open Desmos at desmos.com or launch the Desmos appistry. Select “Graphing Calculator” at the bottom of the screen. In the expression list, type the function you want to graph.
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Reddit
reddit.com › r/desmos › weird piecewise function question
r/desmos on Reddit: Weird piecewise function question
March 19, 2021 -

In my case I want to create a function where variables a and b are a part of the conditions. In my attempt (which I understand is wrong) I attempted to represent the variables as a vector so that when the vector is in quadrant I the function is equivalent to g(x) and when the vector is in quadrant III the function is equivalent to h(x). In other words I'm trying to create a function where when both a and b are positive f(x)=g(x) and when both a and b are negative f(x)=h(x). Also, If I hadn't already made it clear the variables can be seperate and do not need to be in vector form, they just need to be supplementary to one output within the piecewise function. Is there a way to write this in desmos?