C99 Language Standard
Contents
Foreword
Introduction
1. Scope
2. Normative references
3. Terms, definitions, and symbols
4. Conformance
5. Environment
6. Language
7. Library
Annex A
Annex B
Annex C
Annex D
Annex E
Annex F
F.1 Introduction
F.2 Types
F.3 Operators and functions
F.4 Floating to integer conversion
F.5 Binary-decimal conversion
F.6 Contracted expressions
F.7 Floating-point environment
F.8 Optimization
F.9 Mathematics <math.h>
F.9.1 Trigonometric functions
F.9.2 Hyperbolic functions
F.9.3 Exponential and logarithmic functions
F.9.3.1 The exp functions
F.9.3.2 The exp2 functions
F.9.3.3 The expm1 functions
F.9.3.4 The frexp functions
F.9.3.5 The ilogb functions
F.9.3.6 The ldexp functions
F.9.3.7 The log functions
F.9.3.8 The log10 functions
F.9.3.9 The log1p functions
F.9.3.10 The log2 functions
F.9.3.11 The logb functions
F.9.3.12 The modf functions
F.9.3.13 The scalbn and scalbln functions
F.9.4 Power and absolute value functions
F.9.5 Error and gamma functions
F.9.6 Nearest integer functions
F.9.7 Remainder functions
F.9.8 Manipulation functions
F.9.9 Maximum, minimum, and positive difference functions
F.9.10 Floating multiply-add
Annex G
Annex H
Annex I
Annex J
Bibliography
C99 Language Standard
Annex F
F.9 Mathematics <math.h>
F.9.3 Exponential and logarithmic functions
F.9.3.3 The expm1 functions
Previous
Next
F.9.3.3 The expm1 functions
1
expm1((+-)0) returns (+-)0.
expm1(-(inf)) returns -1.
expm1(+(inf)) returns +(inf).