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Scales supported in the iSlideRuleHD app include the
following scales (note that one of the provided scales is a
"blank" scale, and is used when less than five scales are
desired for a given rule).

Gauge marks are located at π, π/4, τ, and M (100/π).

Formula: A = X²

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Gauge marks are located at π and τ.

Formula: AI = 1 / (X²)

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Gauge marks are located at π, π/4, τ, and M (100/π).

Formula: B = X²

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Gauge marks are located at π and τ.

Formula: BI = 1 / (X²)

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Gauge marks are located at C (√(4/π)), ⑫ (dozen), Ⓖ (gross), ρ (π/180), ρ'' (180*60*60)/π), ρ' (180*60)/π), used in radians to degrees conversions, π, τ, C

Formula: C = X

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Formula: C1 = √10 × X

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Formula: C2 = 1 / ( √10 × X )

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Gauge marks are located at π and τ.

Formula: CF = π × X

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Gauge marks are located at π and τ.

Formula: CF/M = ( log

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Gauge marks are located at ⑫ (dozen), Ⓖ (gross), π and τ.

Formula : CI = 1 / X

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Gauge marks are located at π and τ.

Formula: CIF = 1 / ( π × X )

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Gauge marks are located at C (√(4/π)), ⑫ (dozen), Ⓖ (gross), ρ (π/180), ρ'' (180*60*60)/π), ρ' (180*60)/π), used in radians to degrees conversions, π, τ, ρ⁰ (180/π), and C

Formula: D = X

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Formula: D1 = √10 × X

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Formula: D2 = 1 / ( √10 × X )

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Gauge mark is located at π and τ.

Formula: DF = π × X

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Gauge mark is located at π and τ.

Formula: DF/M = ( log

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Gauge marks are located at ⑫ (dozen), Ⓖ (gross), π and τ.

Formula: DI = 1 / X

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Gauge marks are located at π and τ.

Formula: DIF = 1 / ( π × X )

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Formula: F = X⁴

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Gauge marks are located at π and τ.

Formula: F(2π) = X / ( 2π )

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Formula: FI = 1 / X⁴

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Formula: H = 1 / ( 2π² × X² )

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Formula: J = X³

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Formula: JI = 1 / X³

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Formula: K = X³

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Formula: KI = 1 / X³

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Gauge marks are located at ⑫ (dozen), and Ⓖ (gross), π and τ.

Formula: KZ = 360 × X

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Formula: L = log

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Formula: LC = 1 / ( 2π² × X² )

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Gauge marks are located at π and τ on the LL3 scale.

Formula: LL0 = e

Formula: LL1 = e

Formula: LL2 = e

Formula: LL3 = e

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Formula: LL/0 = e

Formula: LL/1 = e

Formula: LL/2 = e

Formula: LL/3 = e

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Formula: Ln = log

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Gauge marks are located at π on the M3 scale, and τ on the M4 scale.

Formula: Mn = X

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Formula: P = √(1 - X²)

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The Qn scales are similar to the Mn scales in that they are an extended fundamental scale useful for higher precision results in calculations. The prime scales have the scale ticks on the top side of the scale, while the non-prime scales have the scale ticks on the bottom of the scale.

Gauge marks are located at π on the Q2 scale, and τ on the Q3 scale.

Formula: Q = X

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The R1 and R2 scales, used with the D scale, can rapidly determine square roots. R1 runs from 1.0 to √10, while R2 runs from √10 to 10.0. Combined, the R1 and R2 scales are like a D scale twice the normal length. The prime scales have the scale ticks on the top side of the scale, while the non-prime scales have the scale ticks on the bottom of the scale.

Gauge marks are located at π on the R1 scale, and τ on the R2 scale.

Formula: Rn = √X

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Formula: S = sin X

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Formula: SHn = sinh X

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Formula: Smann = sin, tan X

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Formula: ST = sin, tan X

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Formula: T1 = tan X or cot X

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Gauge marks are located at ⑫ (dozen), Ⓖ (gross), π, and τ.

Formula: T

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Formula: TH = tanh X

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Available since release 1.0.2, these scales, available only the primary scale set, provide dimensional analysis capability. The 30 marks on each scale represent physical constants. For more information review Dimensional Analysis.

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