Fenzo AI - Pricing

The First Information Age

Printing Press

1440

Gutenberg's movable-type press cut the cost of books by an order of magnitude — turning text from a scarce.

What caused it

Fall of Constantinopleinspired

What it led to

Mass LiteracyenabledReformationaccelerated

Reformation

1517

Luther's 95 Theses spread through Europe within weeks via the press, permanently fracturing the Catholic Church's authority.

What caused it

Printing PressacceleratedMass Literacyenabled

What it led to

Enlightenmentprovoked

Tracing Recursive Factorial

1def factorial(n):
2  if n <= 1:
3    return 1
4  result = n * factorial(n - 1)
5  return result
6 
7print(factorial(3))

Adjust the weight of each criterion to see how your priorities change the ranking.

Option	Speed×34	Scalability×3	Ease×2	Cost×3	Community×4	Total
MongoDB	8	9	7	8	8	121129
PostgreSQL	7	8	8	7	9	118125
Redis	10	6	7	8	7	114124
SQLite	7	3	9	10	6	102109

How much does each criterion matter?0 = ignore · 5 = critical0 = ignore · 5 = critical

Speed3 / 54 / 5

IgnoreCritical

Scalability3 / 5

IgnoreCritical

Ease of use2 / 5

IgnoreCritical

Cost3 / 5

IgnoreCritical

Community4 / 5

IgnoreCritical

Memory Allocation Visualizer

1x = 42
2name = "Alice"
3scores = [95, 87, 100]
4user = {"name": name, "scores": scores}
5y = x + 1

Line 1: The integer 42 is stored directly on the stack as a primitive value.

Cursor
x2.41
y0.64

Run coin flips or dice rolls to compare theoretical probability with experimental probability. As the number of trials increases, observe whether the experimental results move closer to the expected probabilities.

H

T

0121262

Trials

Heads011732

0.0%100.0%50.0%58.3%51.6%

50.0%

Tails001530

0.0%0.0%50.0%41.7%48.4%

50.0%

ExperimentalTheoretical

Full history(0)(1)(2)(12)(62)

Goal

Make a perfect cup of tea

Add milk or lemon to taste

Place tea bag in cup

Steep for 3–5 minutes

Pour hot water over the bag

Boil water to 90°C

Run coin flips or dice rolls to compare theoretical probability with experimental probability. As the number of trials increases, observe whether the experimental results move closer to the expected probabilities.

0121262

Trials

000210

0.0%0.0%0.0%16.7%16.1%

16.7%

000111

0.0%0.0%0.0%8.3%17.7%

16.7%

011311

0.0%100.0%50.0%25.0%17.7%

16.7%

000210

0.0%0.0%0.0%16.7%16.1%

16.7%

001310

0.0%0.0%50.0%25.0%16.1%

16.7%

000110

0.0%0.0%0.0%8.3%16.1%

16.7%

ExperimentalTheoretical

Full history(0)(1)(2)(12)(62)

Built for how you learn best

Personalized practice in every lesson.

The First Information Age

Printing Press

Reformation

Tracing Recursive Factorial

Database Scorecard

Memory Allocation Visualizer

Graphing Function Plotter

The Law of Large Numbers: Coin Flips

Order the Steps: A Perfect Cup of Tea

Make a perfect cup of tea

The Law of Large Numbers: Dice Rolls