PLEAC-Objective-C
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2. Numbers

Checking Whether a String Is a Valid Number

Comparing Floating-Point Numbers
Rounding Floating-Point Numbers
Converting Between Binary and Decimal
Operating on a Series of Integers
Working with Roman Numerals
Generating Random Numbers
Generating Different Random Numbers
Making Numbers Even More Random
Generating Biased Random Numbers
Doing Trigonometry in Degrees, not Radians
Calculating More Trigonometric Functions
Taking Logarithms
Multiplying Matrices
Using Complex Numbers
Converting Between Octal and Hexadecimal
Putting Commas in Numbers
Printing Correct Plurals
Program: Calculating Prime Factors
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