Arccosine to Radians: -1 Cosine Value
Specific conversion page with reference context, calculator, and nearby values.
Table of Contents
-1 Cosine Value converts to
3.141593 rad
Use this as a quick reference for Arccosine to Radians.
Value Details
Input: -1 Cosine Value
Output: 3.141593 rad
Arccosine to Radians
Calculate inverse cosine and return the principal angle in radians.
Calculated Result
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Nearby Reference Values
| Cosine Value | acos(x) |
|---|---|
| -1 Cosine Value | 3.141593 rad |
| -0.95 Cosine Value | 2.824032 rad |
| -0.9 Cosine Value | 2.690566 rad |
| -0.8 Cosine Value | 2.498092 rad |
| -0.75 Cosine Value | 2.418858 rad |
| -0.5 Cosine Value | 2.094395 rad |
| -0.25 Cosine Value | 1.823477 rad |
| 0 Cosine Value | 1.570796 rad |
| 0.25 Cosine Value | 1.318116 rad |
| 0.5 Cosine Value | 1.047198 rad |
| 0.75 Cosine Value | 0.722734 rad |
Frequently Asked Questions
Common questions about Arccosine to Radians, formulas, and expected usage.
What does the Arccosine to Radians calculator do?
It helps with recovering angles from known cosine values in trig and vector calculations.
What formula does the Arccosine to Radians calculator use?
acos(x) returns the principal inverse cosine angle in radians, in the range [0, π].
What inputs are valid?
Input must be between -1 and 1 inclusive for real-number results.
When would I use this?
recovering angles from known cosine values in trig and vector calculations
Methodology and Review
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Use this page as a fast lookup reference, then confirm final project values using applicable standards and manufacturer documentation.