// multi-utility computation suite · offline · instant · precise
┌──────────────────────────┐
│ [c] calcalyst_ │
│ computation suite │
└──────────────────────────┘
// select a module to initialize
/ search↵ open firstesc close
// adsenseEMPTY_LEADER_SLOT728×90
// adsenseMOBILE_ANCHOR_SLOT320×50
// keyboard_shortcuts
/focus search
↑↓navigate module list
Enter
open first result from search
open highlighted
compute when module is open
compute when focused in a field
Escclose module · clear selection
⌫
edu.spaced-repetition-interval Calculator
Calculates the next optimal review interval using the SM-2 spaced repetition algorithm from the card's current ease factor, interval, and recall quality. SM-2 is the algorithm behind Anki — understanding how intervals grow helps learners calibrate review load.
Inputs
Ease Factor
A multiplier applied in the calculation.
Repetition Number
Count of items or occurrences.
Quality
Reference formula or conversion factor shown for context.
Previous Interval Days
Reference formula or conversion factor shown for context.
Results
next review interval (days)
Sample size or count used in the calculation.
new ease factor
A dimensionless multiplier applied in the calculation.
SM-2 algorithm
The selected or recommended algorithm for this problem type based on the inputs.
recall quality scale
A qualitative assessment of how the result compares to the desired standard or benchmark.
review date
The value at the specified point or condition.
EF < 1.3
Reference formula or conversion factor shown for context.