Pre-built calculator programs.
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- Tier 1 · act
ACT Math Formula Sheet
The ACT gives you ZERO formulas. This program has the full set — geometry, trig, sequences, probability, and logs.
- Tier 1 · act
ACT Trig Deep Dive
Extended trig reference for the ACT — unit circle values, identities, inverse-trig, and the angle-reference trick.
- Tier 1 · geometry
Circle Area
Area from radius.
- Tier 1 · precalculus
Complex Mult
Multiply two complex numbers (a+bi)(c+di).
- Tier 1 · geometry
Distance 2D
Distance between two points in 2D.
- Tier 1 · algebra
Factor Quad Ref
Reference card for quadratic factoring rules.
- Tier 1 · algebra
Linear Eq Ref
Reference card for linear equation forms.
- Tier 1 · precalculus
Log Solver
Solve log_b(x)=v for x.
- Tier 1 · statistics
Mean
Arithmetic mean of n values.
- Tier 1 · precalculus
Poly Eval
Evaluate polynomial via Horner's method.
- Tier 1 · geometry
Pythagorean
Right triangle: find missing side.
- Tier 1 · precalculus
Quadratic Solver
Solves ax^2+bx+c=0 with the quadratic formula.
- Tier 1 · statistics
Sample SD
Sample standard deviation of n values.
- Tier 1 · sat
SAT Math Formula Sheet
The formulas the SAT does NOT give you — quadratic formula, exponent rules, distance, midpoint, linear forms.
- Tier 1 · sat
SAT No-Calculator Tricks
Shortcuts tuned for the SAT Math no-calculator section — fast factoring, fraction ops, percent hacks, and sign-analysis.
- Tier 1 · algebra
Slope-Int Ref
Reference card for slope and intercept formulas.
- Tier 1 · algebra
2x2 Systems
Reference card for 2-variable system methods.
- Tier 1 · geometry
Tri Area SAS
Triangle area from two sides and included angle.
- Tier 1 · statistics
Z-Score
Standardized z-score z=(x-mu)/sigma.