Q:
# What Is Pi in MATLAB?

**The expression pi in MATLAB returns the floating point number closest in value to the fundamental constant pi, which is defined as the ratio of the circumference of the circle to its diameter.** Note that the MATLAB constant pi is not exactly equal to the fundamental constant pi.

MATLAB users should be aware that the tiny difference between pi as defined in MATLAB and the fundamental constant pi can lead to unexpected results in calculations. For example, the expression sin(pi), which one would expect to return 0, actually returns 1.2246e-16 in MATLAB. Users can correct this error by rounding the result of sin(pi) to 0.

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Q:
## Who Invented Pi?

A: A mathematics teacher named William Jones is credited with first using the symbol π in 1706 to represent the concept of the ratio between a circle's circum... Full Answer >Filed Under: -
Q:
## What Does Pi Stand For?

A: The number pi represents the ratio of a circle's circumference to its diameter. The ratio never changes for any circle. It is approximately valued at 3.14,... Full Answer >Filed Under: -
Q:
## Who Discovered Pi in Math?

A: We will probably never know who discovered pi, or that the ratio of the circumference of a circle to its diameter is a constant. The search for that consta... Full Answer >Filed Under: -
Q:
## How Do You Use an "if" Statement in MATLAB?

A: "If" statements are used in MATLAB to execute certain statements depending on the truth value of an expression. They are used in conjunction with "else" an... Full Answer >Filed Under: