diff options
Diffstat (limited to 'lib/libm/common_source/exp.3')
| -rw-r--r-- | lib/libm/common_source/exp.3 | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/libm/common_source/exp.3 b/lib/libm/common_source/exp.3 index 3c8a5aa..ae54b7f 100644 --- a/lib/libm/common_source/exp.3 +++ b/lib/libm/common_source/exp.3 @@ -96,7 +96,7 @@ of to the exponent .Ar y . .Sh ERROR (due to Roundoff etc.) -exp(x), log(x), expm1(x) and log1p(x) are accurate to within +exp(x), log(x), expm1(x) and log1p(x) are accurate to within an .Em up , and log10(x) to within about 2 @@ -231,10 +231,10 @@ infinite or \*(Na) before computing x**0 cannot care whether 0**0 = 1 or not. Any program that depends upon 0**0 to be invalid is dubious anyway since that -expression's meaning and, if invalid, its consequences +expression's meaning and, if invalid, its consequences vary from one computer system to another. .It -Some Algebra texts (e.g. Sigler's) define x**0 = 1 for +Some Algebra texts (e.g. Sigler's) define x**0 = 1 for all x, including x = 0. This is compatible with the convention that accepts a[0] as the value of polynomial @@ -252,7 +252,7 @@ The reason for setting 0**0 = 1 anyway is this: If x(z) and y(z) are .Em any functions analytic (expandable -in power series) in z around z = 0, and if there +in power series) in z around z = 0, and if there x(0) = y(0) = 0, then x(z)**y(z) \(-> 1 as z \(-> 0. .Ed .It |
