639 results for "variable".
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Question in Programming extension
Given an unknown list, the student must write Python code to create a copy of it.
There's an alternative to catch the case where the student's variable is just a reference to the original list.
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Question in Programming extension
This is the simplest demonstration of the "code" part type I could think of: assign
x = 1.An alternative answer gives a hint if the studen'ts code doesn't define x at all.
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Question in Content created by Newcastle University
Finding the modulus and argument (in radians) of four complex numbers; the arguments between $-\pi$ and $\pi$ and careful with quadrants!
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Question in Content created by Newcastle University
Find modulus and argument of two complex numbers. Then use De Moivre's Theorem to find positive powers of the complex numbers.
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Question in How-tos
The answer to this question is a differential equation involving $y''$, $y'$ and $y$.
A variable value generator for $y$ ensures that the right values are tested to check that the student's answer is equivalent to the expected equation.
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Question in How-tos
This question includes a JavaScript preamble which defines 'hbar' as a special variable name to be rendered in LaTeX as \hbar.
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Question in MASH Bath: Question Bank
Solving a differential equation of the form $\frac{dy}{dx}=\frac{ax^n}{y}$ using separation of variables.
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Question in MASH Bath: Question Bank
Solving a differential equation of the form $\frac{dy}{dx}=axy^2$ using separation of variables.
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Question in MASH Bath: Question Bank
Solving a differential equation of the form $\frac{dy}{dx}=axy$ using separation of variables.
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Question in STAT7009 Inferential Statistics
Given a random variable $X$ normally distributed as $\operatorname{N}(m,\sigma^2)$ find probabilities $P(X \gt a),\; a \gt m;\;\;P(X \lt b),\;b \lt m$.
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Question in STAT7008
Given a random variable $X$ normally distributed as $\operatorname{N}(m,\sigma^2)$ find probabilities $P(X \gt a),\; a \gt m;\;\;P(X \lt b),\;b \lt m$.
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Question in How-tosThis question demonstrates how to use the \simplify command to create natural-looking randomised mathematical expressions.
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Question in CHY1201 - SpectroscopyQuestion requires students to interchange units of Hz with MHz, GHz, THz. Question is not very efficient at present- frequencies spanning many orders of magnitude are generated by variables in a clumsy way. Could be improved by having frequency generated by a 10^((random(1000..4000)/1000) variable instead, for example.
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Question in MASH Bath: Question Bank
Given a discrete random variable (as a formula) calculate:
E(X), Var, std dev, cumulative distribution and probabilties. -
Question in MASH Bath: Question Bank
No description given
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Question in MASH Bath: Question Bank
Set up and solve an equation = 1, to ensure a function is a CRV
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Question in pre-algebra Numeracy and Arithmetic
Subtracting a decimal with 3 decimal places from a decimal with 2 or 3 decimal places. borrowing is necessary. This was modified from a subtraction question using integers with each number divided by 1000 so the variables have names referring to ones, tens, hundreds etc.
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Question in Manajit's workspace
This is the simplest demonstration of the "code" part type I could think of: write Python to assign
x = 1.An alternative answer gives a hint if the student's code doesn't define x at all.
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Question in Content created by Newcastle University
Find $\displaystyle \int \frac{2ax + b}{ax ^ 2 + bx + c}\;dx$
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Question in Bill's workspace
Given descriptions of 3 random variables, decide whether or not each is from a Poisson or Binomial distribution.
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Exam (15 questions) in WM175 ASSESSMENT 1
Topics: Trigonometeric equations and complex numbers
Students must complete the exam within 90 mins (standard time).
Questions have variables to produce randomised questions. -
Question in XE420
Finding the value of a variable
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Question in LSE MA103 Intro Abstract Maths
Create a truth table with 3 logic variables to see if two logic expressions are equivalent.
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Question in Ben's workspace
Demonstrates how to create variables containing LaTeX commands, and how to use them in the question text.
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Question in MASH Bath: Question Bank
Solving a differential equation of the form $\frac{dy}{dx}=a \cos(x) e^{-y}$ using separation of variables.
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Question in MASH Bath: Question Bank
Solving a differential equation of the form $\frac{dy}{dx}=ax^n e^{-y}$ using separation of variables.
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Question in MASH Bath: Question Bank
Solving a differential equation of the form $\frac{dy}{dx}=\frac{a \cos(x)}{y}$ using separation of variables.
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Question in MASH Bath: Question Bank
Solving a differential equation of the form $\frac{dy}{dx}=x(y-a)$ using separation of variables.
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Question in Algebra Mat140
Create a truth table for a logical expression of the form $a \operatorname{op} b$ where $a, \;b$ can be the Boolean variables $p,\;q,\;\neg p,\;\neg q$ and $\operatorname{op}$ one of $\lor,\;\land,\;\to$.
For example $\neg q \to \neg p$.
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Question in Algebra Mat140
Crear una tabla de verdad para una expresión lógica de la forma $ a \ {op} \ b $ donde $ a, \; b $ pueden ser las variables booleanas $ p, \; q, \; \neg p$ y $\neg q $ y $\ {op}$ puede ser uno de los operadores $ \lor, \; \land, \; \to $.
Por ejemplo $ \neg q \to \neg p $.