Institutional
MAR 2026

The Imprint Engine.

We partner with university mathematics and statistics departments to transform static PDF syllabi into living, interactive digital infrastructure.

"The medium is the message. A static medium teaches a static science."
Marshall McLuhan

Traditional statistical education relies on a broken medium. Students are handed static PDFs containing complex derivations, and expected to build dynamic, multidimensional intuition from flat text.

Show, Don't Tell

We take your existing lecture notes, problem sets, and syllabi, and re-engineer them into browser-native interactive experiences.

Static Past vs. Live Future

Scroll down to watch static PDF derivations wake up and physically transform into live, interactive learning components.

Chapter 1: Probability Density

If FX(x)F_X(x) is the cdf of a continuous r.v. XX, its derivative is called the probability density function (pdf):

fX(x)=ddxFX(x) f_X(x) = \frac{d}{dx} F_X(x)

Which implies the Fundamental Theorem relationship:

FX(x)=xfX(t)dt F_X(x) = \int_{-\infty}^{x} f_X(t)\,dt

The PDF is not a probability. fX(x)f_X(x) can exceed 1. What must equal 1 is the total area under the curve.

Interactive Engine

Continuous Random Variables

Probability Density fX(t)f_X(t)
-2-1120.20.4
Cumulative Distribution FX(x)F_X(x)
-2-1120.51
Adjust Value xx
x = 0.00
-303
Integration
P(X0.00)=0.00fX(t)dtP(X \le 0.00) = \int_{-\infty}^{0.00} f_X(t) \, dt
Cumulative Value & Confidence
FX(0.00)=0.5000F_X(0.00) = 0.5000
Confidence: 50.0%

Chapter 2: Deriving the CDF

To find FX(x)F_X(x), we integrate the piecewise density function fX(t)f_X(t) from -\infty to xx across all three mathematical regions.

FX(x)={x0dtx<0FX(0)+0x12tdt0x<2FX(2)+2x0dtx2 F_X(x) = \begin{cases} \int_{-\infty}^x 0\,dt & x < 0 \\ F_X(0) + \int_0^x \frac{1}{2}t\,dt & 0 \leq x < 2 \\ F_X(2) + \int_2^x 0\,dt & x \geq 2 \end{cases}

Interactive Engine

Derivation Trace

Use the slider to see how the integral accumulates over each mathematical region.

Case 1: -1 ≤ x < 0
x0dt\int_{-\infty}^x 0\,dt00
Density f(t)
Cumulative F(x)
Evaluation
F(-1.00) = 0.000
x = -1.0evaluation x = -1.00x = 3.0
Complete Definition ResultFX(x)={0x<014x20x<21x2F_X(x) = \begin{cases} \color{#9b2c1c} 0 & x < 0 \\ \tfrac{1}{4}x^2 & 0 \leq x < 2 \\ 1 & x \geq 2 \end{cases}

Live Mathematics

LaTeX equations rendered natively alongside interactive parameter sliders. Students manipulate the math and see the geometry change instantly, closing the gap between symbolic logic and visual intuition.

Parameter Control
Mean (μ)0.0
Standard Deviation (σ)1.0

Bilingual Architecture

Full support for English and Arabic (RTL) technical typesetting. Deploy the same rigorous course to international and domestic cohorts seamlessly, maintaining perfect mathematical alignment.

Typesetting Engine
EN
AR

The variance of a continuous random variable XX with density f(x)f(x) is given by:

σ2=(xμ)2f(x)dx\sigma^2 = \int_{-\infty}^{\infty} (x - \mu)^2 f(x) dx

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