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Math Foundations

Pre-calculus mathematics required before entering calculus-based engineering courses — algebra, functions, geometry, trigonometry, exponentials, logarithms, and complex numbers.

6 modules·79 concepts·94 practice problems·~30 hours

Module Breakdown

1.Algebra Core

16 concepts·18 problems

Manipulate algebraic expressions, solve linear and quadratic equations, work with systems of equations, and simplify rational expressions — the symbolic toolkit used throughout every engineering course.

16 concepts covered
Algebraic Expressions And SimplificationDistributive Property And Combining Like TermsSolving Linear EquationsSolving Linear Equations Variables On Both SidesInequalities And Interval NotationCompound InequalitiesAbsolute Value Expressions And EquationsFactoring Gcf And GroupingFactoring Quadratic ExpressionsSolving Quadratic Equations By FactoringThe Quadratic FormulaCompleting The SquareSystems Of Linear Equations SubstitutionSystems Of Linear Equations EliminationSimplifying Rational ExpressionsSolving Rational Equations

2.Functions & Graphs

13 concepts·16 problems

Understand function notation, domain and range, compositions, inverses, and graph transformations. Build the fluency with function behavior that calculus relies on.

13 concepts covered
Function Notation And EvaluationDomain And RangeIncreasing Decreasing And ExtremaEven And Odd FunctionsPiecewise FunctionsComposition Of FunctionsInverse FunctionsGraphing Quadratic FunctionsVertical And Horizontal TranslationsStretches And ReflectionsCombining Multiple TransformationsAverage Rate Of ChangeDistance And Midpoint Formulas

3.Geometry Essentials

10 concepts·16 problems

Apply the Pythagorean theorem, similarity, angle relationships, and area formulas to triangles, circles, and composite figures — the spatial reasoning foundation for statics and design.

10 concepts covered
The Pythagorean TheoremPythagorean Triples And ApplicationsSimilar Triangles And ProportionalityTriangle Properties And Angle SumParallel Lines And TransversalsAngle RelationshipsCircle Properties Circumference And AreaArea FormulasComposite Figures And Applied GeometrySpecial Right Triangles

4.Trigonometry

19 concepts·24 problems

Master trig ratios, the unit circle, identities, and the Laws of Sines and Cosines. Covers radian measure, graphing sinusoids, and solving trig equations used across physics and engineering.

19 concepts covered
Trigonometric RatiosTrig Values Of Standard AnglesSolving Right TrianglesRadian Measure And Degree ConversionArc Length And Sector AreaThe Unit Circle First QuadrantThe Unit Circle All Four QuadrantsReference AnglesReciprocal Trig FunctionsGraphing Sine And CosineAmplitude Period And Phase ShiftGraphing Tangent And Reciprocal FunctionsPythagorean IdentityDouble Angle FormulasSum And Difference FormulasInverse Trigonometric FunctionsSolving Trigonometric EquationsLaw Of SinesLaw Of Cosines

5.Exponentials & Logarithms

11 concepts·12 problems

Work with exponential growth and decay, compound interest, the natural exponential, and logarithmic properties. Learn to solve exponential equations using log rules and change of base.

11 concepts covered
Exponential Functions And GraphsThe Number E And The Natural ExponentialExponential Growth ModelsExponential Decay ModelsCompound Interest And ApplicationsGraph Transformations Of Exp And LogLogarithm Definition And EvaluationNatural Log And Common LogLaws Of LogarithmsChange Of Base FormulaSolving Exponential Equations Using Logarithms

6.Complex Numbers

10 concepts·12 problems

Perform arithmetic with complex numbers in rectangular and polar form, plot them on the complex plane, and apply Euler's formula — essential preparation for circuits and signal analysis.

10 concepts covered
The Imaginary Unit And Powers Of IComplex Number FormAddition And Subtraction Of Complex NumbersMultiplication Of Complex NumbersComplex Conjugates And DivisionThe Complex Plane Modulus And ArgumentPolar Form Of Complex NumbersMultiplication And Division In Polar FormRectangular Polar ConversionEulers Formula

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94 practice problems with step-by-step solutions. Free, no credit card.